Krasimir O. Boyanov; Mariya A. Choneva; Ivica Dimov;
Iliyan V. Dimitrov;
Tatyana I. Vlaykova;
Fanka D. Gerginska;
Slavi D. Delchev;
Petar I. Hrischev;
Katerina N. Georgieva;
Anelia V. Bivolarska и др.
Mariya Choneva; Michaela Shishmanova-Doseva; Ivica Dimov;
Krasimir Boyanov;
Iliyan Dimitrov;
Tatyana Vlaykova;
Katerina Georgieva;
Petar Hrischev;
Anelia Bivolarska и др.