Doychin Tolev
Professor, DSc
E-mail: dtolev@fmi.uni-sofia.bg
Ludmila Nikolova
Professor, PhD
E-mail: ludmilan@fmi.uni-sofia.bg
Milko Takev
Associated professor, PhD
E-mail: babev@fmi.uni-sofia.bg
Vladimir Babev
Associated professor, PhD
E-mail: babev@fmi.uni-sofia.bg
Vladimir Popov
E-mail: popov@fmi.uni-sofia.bg