[1] Barry's website: http://ag.arizona.edu/PLP/alternaria/online/
[2] G. Barron. The Genera of Hyphomycetes from Soil. Williams and Wilkins Company,
Baltimore 1968
[3] P. Prusinkiewicz, A. Lindenmayer. The Algorithmic Beauty of Plants. SpringerVerlag New York, Inc., New York, NY, 1990
[4] A.R. Smith. Plants, fractals, and formal languages. Computer Graphics, 18(3):1-10,
1984
[5] P. Prusinkiewicz, M. James, R. Mech. Synthetic topiary. In SIGGRAPH 94
Conference Proceedings, pages 351-358. ACM SIGGRAPH, New York, 1994.
[6] M.T. Allen, P. Prusinkiewicz, T.M. DeJong. Using L-systems for modeling sourcesink interactions, architecture and physiology of growing trees: the L-PEACH model
Original (deterministic) L-system parser code by Lauren Lapre,
http://home.wanadoo.nl/laurens.lapre/lparser.html