About the author

Name: Dimiter Dimitrov Dobrev

Address: P. O. Box 1274
Sofia 1000, Bulgaria
Telephone: +(359) (2) 979 2862
E-mail: prolog@2-box.net

This program is made with the help of:
Angel Genov
Anton Zinoviev
Antonio Maschio
Borislav Rizov
Boyko Bantchev
Dimitar Guelev
Georgi Shkodrov
Plamen Sharapanov
Radoslav Nikolov
Stoyan Michov
Vassil Ilinski
artist Konstantin Lakov

Special thanks for the support to
Prof. Dimiter Skordev