LORBER, Lučka. Development of the industrial areas of Maribor and change of their intended function. V: MAIER, Jörg (ur.). Stadt und Stadtregion Maribor : Strukturen, Entwicklungen, Probleme, (Arbeitsmaterialien zur Raumordnung und Raumplanung, Hft. 250). Bayreuth: Universität, Lehrstuhl Wirtschaftsgeographie und Regionalplanung, 2006, str. 35-48, ilustr. DEVELOPMENT OF THE INDUSTRIAL AREAS OF MARIBOR AND CHANGE OF THEIR INTENDED FUNCTION Assistant Professor Lučka Lorber, Ph.D University of Maribor Faculty of Education Department of Geography Koroška 160, 2000 Maribor, Slovenia E-mail:lucka.lorber@uni-mb.si Abstract The article discusses structural changes of Maribor economy during the transitional period and during the period of Slovenia’s association to the Common European market and their impact on change of the intended function of industrial zones. Majority of income of the Maribor economy typically came from industrial activity in the past. With change of social system and transition to market economy, Maribor economy transited through all development phases, typical of old industrial centres. The consequences of negative deindustrialisation that affected the city in the process of transition to market economy are given special emphasis here. The first signs of crisis in bearing manufacturing activities led to revenue decrease of Maribor economy in gross domestic product of the country. Based on the analysis of the economic structural changes in the period 1991-2004 we establish that the key reason for the delaying development of Maribor economy sector next to the inadequate structure of the economic sectors lies in low capital investment rates and in low added value per employee. Structural changes of Maribor economy, especially in the manufacturing activities, during the transition period and during the period of change to market economy are conveyed in the impact on the development of old industrial zones. Decline of large industrial companies has caused once unified industrial zones of the city to change their function and become increasingly mixed areas where smaller processing production plants are being intertwined with service activities. Key words: industrialisation, industrial zones, negative deindustrialisation, structural changes of Maribor economy 1 Industrial development in Maribor Industrial development in Slovenia was closely correlated to the development of AustroHungarian state, although Slovenia already had some important mines and manufacturing shops in the beginning of the industrial era. The industrialisation process is one of the most important social and economic processes that has had the most powerful impact on physiognomy and the quality of the landscape in the nineteenth and twentieth centuries. Being affected by the industrialisation, the distribution of the population and function of the settlements were also changed. The number of urban population increased heavily under the influence of deagrarization. The process of urbanisation brought changes in image and function of the cities. Maribor was the city that experienced the heaviest industrialisation amongst larger Slovenian cities1. During the manufacturing-industrial period, 19.1% of all companies of the Slovenian territory were located in Maribor. Processing and light industries, the outcome of limited sources of natural raw materials, work force and tradition, were prevailing. The companies were run predominantly by foreign-owned capital mostly by owners from the centres in Vienna, Graz and Trieste. Only in the 18th century, when a commercial road was built through the city, the traffic through the city enhanced development of crafts and commerce. In that period, first companies arose that initiated the industrialisation of Maribor. The settlement was still concentrated around its medieval inner city and started to spread alongside main roads to its future city area gradually. In the midst 19th century, Maribor, still giving an impression of a country town, entered into its second urbanisation period. The latter was labelled by economic liberalism, bureaucracy, educational system, military, food-processing industry, commerce and railway with its large workshops. With the abolition of feudal relationships in 1848, building of railways, administrative inclusion of suburbia and with building of railway workshops in 1863, the administrative, commercial and industrial development of Maribor began. Its population grew by 14 times in 100 years. Rapid development caused Maribor to urbanize hastily. Arising industrial plants were established around the Glavni kolodvor and the Koroški kolodvor (the Main railway station and the Koroški railway station), and developing commercial sector was situated along the Partizanska cesta. New city areas were arising between the old inner city and the former neighbouring villages that eventually united with the associated suburbs into one unit2. After the World War I, in the period between 1918 and 1945, the development in the newly formed state redeployed from food-, leather- and timber industries to textile- and metal industries. Maribor became the first Yugoslav centre of textile and metal industry3. Based on the 1 According to the population census survey in 1910, the city of Maribor had 25.7 % of active industrial population (cummulative with the employed in crafts trade). 2 Krajevni leksikon Slovenije; Podravje and Pomurje, book IV, 1980, Ljubljana. 3 At the end of 1938, Maribor had 27 textile factories where 6,293 workers were employed or in other words 35.7 % of all Slovenian textile workers. The metal industry of the time employed 3,700 workers. 2 development of classic industrial branches the first industrial zones Melje, Tezno and Studenci were formed. PERIOD : till 1925 1926-30 KOŠAKI MELJE 1931-35 1936-41 POBREŽJE STUDENCI TABOR PEKRE TEZNO RADVANJE Lorber, 2006 Figure 1. First industrial zones A more intensive industrialisation process was inhibited by weakness of Slovenian capital, interests of foreign capital and overall socio-economic crisis in Yugoslavia. After the World War II, in the socialist administrative-centralistic era (1945-1952), the most intensive economic development of the city followed. The process of nationalisation, performed in years 1946 and 1948, brought the nationalisation of sixty larger and smaller industrial companies4. Electrification and development of hydroenergetic system on the River Drava enabled the enhancement of production capacity and development of new industrial branches. Until 1952, thirteen industrial branches evolved in the city. In the 1952, metal industry took the leading role with 48.2 % of all industrial workers while textile industry with its 33.6 % of workers generated the largest share of national income of the city industry. Timber industry with 6.2 % and the production and processing of electric energy with 3.8 % of employees in Maribor industry were following. In the socio-economic circumstances of that era, a distinctly unilateral economic structure arose in Maribor having emphasis on production of vehicles, means of production, investment equipment and textile. 4 In 1951, there were thirty six industrial companies that were formed by joining of eighty nine factories, plants and crafts workshops. 3 In the sixties, Maribor industrial sector reached its mature stage of development. Metal industry with 45 %, textile with 19.8 % and electrotechnical industry with 9.5 % were still holding the leading position. Three new industrial branches arose: non-ferrous metal industry, buildingmaterial industry and production of petroleum products. The after-war industrial development was based mainly upon extending of traditional industrial branches. In the period of self-government economy (1952-1989), the state interfered with the organisation of business systems by its political moves. Economic policy of the socialist system had not allowed timely restructuring of classic industry in compliance with the requirements of market economy and of new economies that began to evolve in the European area in the 1960s. The unbridled development of Maribor industrial sector can serve as an example. In the seventies, Maribor industrial sector entered the phase of stagnation and falling behind the pace of development in the rest of Slovenia. Investments in that period are decreasing; typical are self-sufficiency, self-confinedness and fragmentation of industrial companies as well as their technological obsoleteness5. The eighties delineate regression regarding the Maribor economy which is showing in cessation of population growth, reduction of employment positions, decreased share of national product and in level of new investments which was below the republic average. PERIOD till 1991 KOŠAKI MELJE STUDENCI POBREŽJE TABOR PEKRE TEZNO RADVANJE Lorber, 2006 Figure 2. Industrial zones before 1991 The companies underwent an organisational transformation and became basic organisations of united labour – the so-called TOZDs (Temeljna Organizacija Združenega Dela). Among fifty-five companies, as many as 43 decomposed into TOZDs. 5 4 Presentation and analysis of economic activities after 1991 After Slovenia gained independence, with disintegration of the Yugoslav market and with loss of the Eastern market (CMEA) as well as with the transition to market economy, the old industrial cities encountered economic crisis. Maribor, which represented one of the most powerful industrial centres in Slovenia and in the former Yugoslav area, was in a middle of a long lasting crisis that 1986 required integral social and economic 2004 12 1987 restructuring. Maribor economy 10 2003 1988 experienced a rapid decline of 8 2002 1989 industrial production in the end of 80s 6 because of its unpreparedness for 4 2001 1990 social and economic changes that 2 followed. The structure of Maribor 0 2000 1991 industrial sector was based upon capitally expensive structure and 1999 1992 upon limited structure in terms of income. It was concentrated in giants 1998 1993 which had reached their climax in the 1997 1994 1996 1995 sixties. After this period, a constant decline of national product in the national product of Slovenia followed. Revenue share of Maribor economy in RS revenues Graph 1: Revenue share of Maribor economy in RS revenues in the period 1986-2004. Source: SDK, APP, APPI, AJPES, author’s calculations. In 1986, the Maribor municipality was still generating 11.0 % of overall revenue in the framework of Slovenian economy. The most profound decline that Maribor economy experienced was in the period between the end of the eighties and Slovenia’s gaining independence in 1991. Only the period after 2002 can be characterized as an era of gradual revival of Maribor economy which is still too slow to have significant influence on the improvement of socio-economic circumstances in the Maribor municipality. Reasons for the crisis of Maribor economy in the midst eighties can be analytically defined by the inadequate structure of economic activities6. Maribor economy of the time generated more than 60 % of revenue through processing activities where the leading role was attributed to production 6 Majority of revenue in the industry sector was generated by manufacture of heavy vehicles, investment equipment and textile manufacture, mainly focused on requirements of Yugoslav market. Such a structure of the industrial companies did not prove stimulating for development of small and medium-sized enterprises which tend to be more competitive and could adapt easier to the changes on the market. That was the cause for Maribor to experience the destiny of old industrial cities. Classic industry did not produce common goods or high added value products and was thus not able to present its offer on the competitive markets to compensate for the loss on southern market. 5 of transportation vehicles and to the textile industry. The crisis in these two branches brought serious problems to Maribor economy. With disintegration of Yugoslav state, the production of investment equipment and textile lost the majority of their markets. After 1991, some major changes occurred in Maribor economy regarding the structure of industrial companies, the structure of economic revenues and in production according to sectors of activity. The share of the industrial sector in the Maribor economy revenue was falling rapidly in the period from 1989 through 1991 while the decline was somewhat slower after 1991. The fall in industrial production plays a leading role in economic recession of Maribor compared to the republic. Maribor experienced the deepest fall in economic revenue in 1993. The 2003 successful growth of 2002 commercial revenue was the 2001 result of relatively moderate 2000 fall of the revenue in 1999 Slovenian economy. After 1993, the financial services 1998 sector experiences growth, 1997 which is mainly the result of 1996 activation of larger number of 1995 small enterprises that needed 1994 financial service7. The 1993 deviation from normal revenue 1992 growth in the sectoral activity 1991 of transport and connections in 1995 is a consequence of 1990 moving the headquarters of 1989 Slovenian Post Office from 0% 20% 40% 60% 80% 100% Ljubljana to Maribor. Industry Constuction Transport and communication Trade Financial intermediation Other activities Graph 2: The trend of revenues in individual sectors of Maribor economy. Source: SDK, APP, APPI, AJPES, MOM – department of economy. 7 Financial engineering were the main source of capital for the newly-formed private companies in the period 1992 – 1994. In the period of high inflation, the financial grey market tends to lend money at usurious interest rates. With the suppression of the inflation, most of these financial engineering experienced a breakdown and were unable to pay unrealistically high interests, let alone to return the principal value to their investors. That led to a breakdown of the grey financial market in 1995. 6 In 1995, a change in classification of the activity occurred. Changes in the form of new ways of acquiring statistical data do have influence on partial deviations in cumulative figures. The sheer impact is not important to the extent where long-term trends could not be comprehended or their impact on economic circumstances in Maribor municipality analysed. In the nineties, territorial changes occurred. Until 1990, the territory of Maribor municipalities measured 738 km2 and had 186,844 occupants that lived in 177 living quarters. In 1990, the city unified in terms of administrative affairs into one unit for functional reasons. Three municipalities formed from former six units: The Maribor municipality (1), the Pesnica municipality (2) and the Ruše municipality (3). The new Maribor municipality encompasses 357 km2 and numbered 153,053 inhabitants, living in 87 settlements. In the end of 1994, another transformation occurred. The newly formed municipalities of Duplek (4), Rače-Fram (6) and Starše (5) separated from the Maribor municipality. The Maribor municipality now measures 213.7 km2 and numbers 132,860 inhabitants, living in 50 settlements. At the brink of a millennium, municipalities of Miklavž na Dravskem polju (7) and HočeSlivnica (8) separated from the Maribor municipality. Maribor municipality today measures 147.5 km2 and, according to population census of 2002, numbers 110,668 inhabitants, living in 33 settlements8. Without having regarded changes in data acquiring due to territorial changes of the Maribor municipality, wrong conclusions could be made that the circumstances in Maribor economy are even worse than they really are. Figure 3: Maribor municipality today 8 Administrative changes hinder monitoring and analysis of data in economic trends of the entire area. 7 Structural changes in the sector of manufacturing activities Taking into consideration the fact that the revenue of the Maribor economy was based on revenues of manufacturing activities, it is understandable that the consequences of the recession are closely associated to structural changes within these activities. The main disturbance in the Maribor manufacturing activities occurred in the few year period before gaining independence and the first years after that. It is thus typical for Maribor economy to have experienced a shock as early as in 1988, the year of crucial political events that eventually brought to the disintegration of Yugoslavia. The production share in the sector of manufacturing of transport equipment (DM) began to fall 2004 drastically. The Yugoslav Army ceased to buy from 2003 Maribor companies almost 2002 entirely in the 1988. By 2001 gaining independence, 2000 Slovenia lost the civilian part of the Yugoslav market and 1999 the decay of incorrectly run 1998 and stately privileged 1997 companies was thus 1996 inevitable. In the 80s, the most important activity was the 1995 manufacture of transport 1994 9 equipment that contributed 1991 34.9 % of the Maribor 1990 manufacturing sector revenue. Its share was falling rapidly 1989 because of the loss of the 1988 market. This decline is even 1987 larger considering the absolute figures because Maribor 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100 % industrial production in that period decreased by 42 %. DA DB DJ DL DM Others Graph 3: The trend of revenue shares in the sector of manufacturing activities (NACE classifications registry) in Maribor economy. Source: SDK, APP, APPI, AJPES, MOM – department of economy, author’s calculations. 9 The bankruptcy of TAM as a result of the ‘wait-and-see’ state interventionism. 8 Figure 4: The first phase of 1988-1995 – crisis in the sector of transport equipment manufacturing (DM) Traditional industrial sectoral activities such as the manufacture of transport equipment (DM), textile10 (DB), electrical equipment11 (DL) and engineering industry12 (DK) experienced significant decrease in production. These manufacturing activities had their markets in the former Yugoslav area and were “privileged” at both, the state and the local levels. The consequences of disintegration of Yugoslav market proved fatal for the companies which operated in the field of production of the investment equipment. The absence of propulsive13 industry sectors resulted in rapid decline of the Maribor economy revenues. The process of restructuring Maribor economy is now progressing in a very slow manner. The share of investing in research and development and in modernisation of the production14 was not sufficient. Attempts were made at solving the problems by subsidizing the manufacture of transport equipment. 10 Problems and bankruptcy of MTT in Melje. The crisis in textile sector tends to keep deepening. This way the branch continues to experience a considerable regression and decrease of the number of employees. 11 Data for the year 1994 show low share of the production which is the consequence of a bankruptcy of Elektrokovina. In the year 1996, the production increased due to the investment in the Elektrokovina’s part – Svetila made by Siemens. 12 In the end of 1994, Metalna went bankrupt. Metalna disintegrated and part of the company was taken over by the Palfinger company (direct investment of foreign capital), while the other part of the company restored some of the production in 1995 and tends to achieve good results today. This is the reason for increase of the share of production in the framework of production structure in the machine-building sector. 13 Propulsive industry tends to increase the development of the new accompanying production and services. 14 Investments in Maribor economy reach 75 % of the republic average in the year 1990, while in the years 19921994 the share is merely 67 %. Source: Lorber L., (1999), Processes of restructuring Maribor industry and their impact on transformation of the space, doctoral dissertation, Zagreb. 9 Figure 5: The second phase, 1992-1996 – the crisis in the manufacture of machinery and equipment (DK) and manufacture of electrical machinery and equipment (DL) The decline in the number of the employed was typical for the period of 1994-1997. The largest disturbances were caused by the bankruptcy of the MTT textile factories in Melje and Tabor. The index 1997/1994 totals to 65 (87 on the municipal level). 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 DA DB DJ DL DM Others Graph 4: The employees according to sectoral division of manufacturing activities in Maribor economy in the period 1994-2004 Source: Lorber L. (1999): Restructuring processes in Maribor economy and their impact on transformation of the space, doctoral thesis, PMF, Zagreb. AJPES, DURS, 10 The data clearly show that the production activities sectors DA – manufacture of food products, drinks and production of animal fodder as well as DB – the production of yarns and textile fabrics are being confronted with the least favourable prospects in the past years. In 2006, losses of positions of employment can be expected in both sectors of activities because the revenue share dropped significantly compared to the number of employees. Data for DB show that mass dismissals of work force in this sector of activity will continue. In the 2005 and 2006, a 40 % rate, in other words 400-500, loss of work posts can be expected which means about 3.5 % of work posts in the sector of processing activities. Figure 6: The third phase, 1994-2005 – the crisis in the textile sector Maribor was unable to benefit from its geographical position and to attract foreign capital that could relieve the accumulated economic problems in that time. One of the reasons for the unsuccessful linkages with the foreign capital was also state interventionism. Grants for preserving work posts had quite the opposite effect from the expected. State subsidies were used for improvement of solvency and for employees’ wages. The economic management took the ‘wait-and-see’ position and expected a solution from the state. The local community was out of ideas and thus confronted a rapid growth of unemployment rate and decrease of national product, it expected to be saved by the state that adopted the ‘up-to-bottom’15 approach of help to the economy thus relieving momentary social tensions, but affected consequent decline of manufacturing and services activities in Maribor in the medium-term run. 15 Parker P., 2000. Global Opportunities and Regional Strategies: Contrasting Canada's Technology Triangle and Australia's Multi – Function Polis. In: Regional Cohesion and Competition in the Age of Globalization. 11 Capital investments and added value per employee Economic movements are directly dependent on the investment share. Thus the environments where share of investments is above republic average can be considered as being a part of dynamic development. All investments neither result in the same effects nor in the correspondent share of revenue. However, when the share of investments per employee is compared to share of revenue16 of Maribor economy in the framework of revenue of RS in the period 1986-2004, we can observe the direct correlation between the increased investment and growth of the revenue. 120,0% SLO = 100 % 100,0% 80,0% 60,0% 40,0% 20,0% 0,0% 1990 1991 1992 1993 67,1% 85,2% 76,3% 70,6% 92,9% 114,2% 118,8% Per employee 51,9% 67,1% 62,0% 57,2% 77,4% Per capita 1994 2003 82,3% 2004 86,6% Graph 5: Share of investment per inhabitant and per employee in percentage compared to the Slovenian average. Source: Lorber L. (1999): Restructuring processes in Maribor economy and their impact on transformation of the space, doctoral dissertation, PMF, Zagreb, UMAR, author’s calculations. The analysis of the Graph 5 shows that Maribor economy is approaching a demanding period of restructuring. The setback behind the republic average is decreasing; however it still stays behind republic average by 13.9 percentage points. At the same time, the most developed statistical region of Osrednja Slovenija exceeds investment rates per employee by 58.6 percentage points. Reasons for low added value per employee may be attributed to the inadequate structure of economic activities. The existent labour legislation disables the management to lead active employment policies and thus achieving the optimum results. 16 See Graph 1: Revenue share of Maribor economy in RS revenues in the period 1986-2004. 12 100 90 80 70 60 50 The share of added value per employee , RS=100 1998 1999 2000 2001 2003 2004 84,7 81,6 80,5 79,9 82,9 86,1 Graph 6: The share of added value per employee in Maribor economy in the period 1998-2004. Source: SURS, UMAR, author’s calculations. Despite slight increase of revenue which is above republic average, the analysis of the ratio between revenue and the number of employees within the manufacturing activities shows that as early as in 2006, loss of work posts can be expected in the sectors of food production (DA) and above all in the sectors of textile goods and textile products (DB). Internal structure of revenue of the Maribor economy shows that manufacturing is concentrating again in three sectors that acquired half of their revenue in the framework of manufacturing activities in the 2004. The DJ sector – metal processing, which employs 24.4 percent of all employees, generates a majority of revenue (22.9 %). Maribor economy today, at one time well known by its large and successful companies, has no successful large company to be proud of, except for Mariborska livarna and foreign-owned companies Henkel, Palfinger and Siemens. 13 Conclusion Slovenia experienced the most severe socio-economic problems in the transition period in the areas with inadequate economic structure. Maribor economy that coped with the restructuring of classic production sectoral activities according to market economy principles also belongs to this category. Structural changes of Maribor economy in the transition period can be classified in three stages. The first phase (1988-1995) was the beginning of the crisis in the companies that produced commercial vehicles and which also included dedicated production for the purposes of the Yugoslav Army. The latter part of the production was managed with no regard to marketing principles. In the year 1988, when Yugoslav political crisis began, the Yugoslav Army ceased to purchase special purpose vehicles. Companies were not prepared to the unilateral discontinuation of cooperation and political leaderships believed in normalisation of business operations and thus directly contributed to the decline of these sectoral activities. The state involved in solving the problem using state subsidies that were intended for ‘preservation of work positions and workers’ wages’ and not for the restructuring of production or seeking for new strategic partners. Such an approach using state subsidies was known in the developed economies in the seventies and eighties of the preceding century. Its consequence was triggering the ‘wait-and-see’ effect with the leaderships of the companies. The ‘top-down’ model which was based on the central role of the state and the strategy of passive receiving of the state funding for preservation of existing work positions came into effect. Its consequence was the falling share of revenue in this sector from 34.9 percent in the year 1987 to 3.1 percent in the year 1995. The second phase (1992-1996) delineated the crisis in the companies producing investment equipment. It was typical of these companies to have been operating mainly in the common Yugoslav market and, together with the large state-owned companies, in the foreign markets of the Third World. They lost the Yugoslav market and cooperation export deals with the decay of the common state. Obstructed access to the financial market and loss of markets consequently brought the decline of these companies. At the same time, the employees from these working environments were the main holders of constitution of small enterprises – both, those productionas well as those service-oriented. Third phase (1995-2006) delineates the crisis in companies in the textile sector. This sector experienced three critical periods. The first period was the year 1995 when more than 25 % of all jobs in this sector were cancelled, while in the 1998 over 30 % of the remaining jobs were also cancelled; thus, the number of the employees decreased to under 2,000 employees for the first time. The last crisis is placed in the years 2004 and 2005 when additional 300 jobs were lost. The textile industry is bound by cheap labour force and employing women. Globalisation of the trade and changing to the market economy inevitably brought recession and decline to this industrial activity. 14 Experiences revealed the fact that structural problem of Maribor economy could not be successfully resolved merely by external development incentives (investments, state funding, and acquisition of new companies) in accordance to observations of he ‘top-down’17 model. Both the city and the economic operators are lacking the vision of development. The ‘bottom-up’ model strategy pointed out the weakness of Maribor economy since the qualitative and quantitative effects were lower than expected due to weak development potential. Endogenously (‘bottom-up’ model) devised approach to stimulation of development, based on exploitation of Maribor’s own developmental capabilities, is crucial in this stage of development. However, an association with the ‘local-global partnership’ model should be established as soon as possible to achieve greater efficiency of the development by combining international and state funding, as well as by private funding to build public-private partnership. The essence of restructuring processes in Maribor economy is in adaptation to circumstances on the global market. Economic goals of long-term growth of added value and productivity should be followed in pursuance of assuring competitiveness. This will bring adequate living standard to the population and provide for regional development. The successfulness of this goal depends on successful development of processing sectors that are closely related to other economic sectors. Developed processing sectors are the generator of development in service sectors that are associated with the industry. In these service sectors possibilities exist for employing the work force which has once lost their employment in the processing sectors because of the rationalisation of working processes and improved work productivity. Strategic holders of development (transportation-logistics sector, financial and business services, tourism, as well as large and small entrepreneurship) of the Maribor economy should be stimulated for improvement of its situation. It is in the regional and national interest to take advantage of the favourable geostrategic position and development perspective for the purpose of international cooperation. Public and private investments in education should be enhanced, especially investing in science and new technologies that would, together with investments in entrepreneurship, form a basis for transformation of Maribor economy. All mentioned efforts will have an important impact on changes in purposeful utilization of space. Urban design of Maribor is focused on additional construction of free and unused urban surfaces and on rounding-up of industrial-business zones that will have the adequate infrastructural equipment and appropriate connections to transport corridors. Protection of environment and humanization of life are future development perspectives that will ensure a more qualitative urban image of the city and improve residing of its inhabitants. 17 Parker P., 2000: Global opportunities and regional Strategies. Regional Cohesion and Competition in the Age of Globalization. 15 Sources: Bračič V.,1978: Prostorski razvoj upravne in samoupravne razdelitve na območju severovzhodne Slovenije, Časopis za zgodovino in narodopisje, Maribor. Bračič V.,1983: Razvoj upravne razdelitve v Mariboru, Kronika, Časopis za slovensko krajevno zgodovino, Ljubljana. Černe A.,2002: Regionalni problemi in regionalni razvojni programi v Sloveniji. 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