Hr.Smirnenski Blvd 1, Sofia 1046, BULGARIA phone.: +359 2 9635245, fax: +359 2 8656863 e-mail: aceadm@uacg.bg; http://www.uacg.bg CERTIFICATE OF ATTENDANCE We hereby confirm that prof. Aleksander Sladkowski coming from Silesian University of Technology - PL GLIWICE01 has performed a Staff mobility in our institution in order to consolidate our Erasmus collaboration between our 2 institutions from ……./ ………./ ……… to ………/ ………./ ……… Place: Sofia Date: Name and position of the authorized person at the host institution: Prof. dr. eng. Plamen Maldjanski Vice rector International relations Signature: Stamp: