Miglena Balcheva-Eneva; Assya Krasteva; Georgi Nikolov;
Martin Georgiev;
Rumiana Hristova;
Mariela Hristova;
Yana Kandova;
Iliana Stoeva;
Angelina Kisselova;
Bogdan Petrunov;
Maria Dencheva;
Mariana Tsekova-Yaneva и др.
Radka E. Stoeva; Liliana I. Grazdanova; Joris R. Vermeesch;
Maria Kirshhoff;
Jean-Pierre Fryns;
Ivan S. Ivanov;
Iliana H. Patcheva;
Boyan I. Dimitrov;
Tsanyu B. Krastev;
Alexander J. Linev;
Margarita T. Stefanova и др.
Radka E. Stoeva; Liliana I. Grazdanova; Joris R. Vermeesch;
Maria Kirshhoff;
Jean-Pierre Fryns;
Ivan S. Ivanov;
Iliana H. Patcheva;
Boyan I. Dimitrov;
Tsanyu B. Krastev;
Alexander J. Linev;
Margarita T. Stefanova и др.
Miglena Balcheva-Eneva; Assya Krasteva; Georgi Nikolov;
Martin Georgiev;
Rumiana Hristova;
Mariela Hristova;
Yana Kandova;
Iliana Stoeva;
Angelina Kisselova;
Bogdan Petrunov;
Maria Dencheva;
Mariana Tsekova-Yaneva и др.