Kraev, Krasimir; Geneva-Popova, Mariela; Hristov, Bozhidar; Uchikov, Petar; Popova, Stanislava; Kraeva, Maria; Basheva-Kraeva, Yordanka; Sheytanov, Ivan; Petranova, Tzvetanka; Stoyanova, Nina; Atanassov, Marin

Monov, Simeon; Nestorova, Rodina; Velkova, Margarita; Boyanov, Mihail; Jeleva, Silvia; Petkova, Renata; Petranova, Tzvetanka

Boyanov, Mihail A; Borissova, Anna-Maria; Petranova, Tzvetanka P; Popivanov, Plamen R; Stoilov, Rumen M; Petkova, Reneta T

Pavelka, Karel; Szekanecz, Zoltán; Damjanov, Nemanja; Anić, Branimir; Tomšič, Matija; Mazurov, Vadim; Maksimovic, Marija; Nagy, Orsolya; Świerkot, Jerzy; Petranova, Tzvetanka; Veldi, Tiina; Baranauskaitė, Asta; Codreanu, Catalin; Andersone, Daina; Fleischmann, Roy

Kirilova, E; Johansson, H; Kirilov, N; Vladeva, S; Petranova, T; Kolarov, Z; Liu, E; Lorentzon, M; Vandenput, L; Harvey, N C; McCloskey, E; Kanis, John A

Petranova, T; Boyanov, M; Shinkov, A; Petkova, R; Intorcia, M; Psachoulia, E

Mandl, Peter; Baranauskaite, Asta; Damjanov, Nemanja; Hojnik, Maja; Kurucz, Reka; Nagy, Orsolya; Nemec, Petr; Niedermayer, Dora; Perić, Porin; Petranova, Tzvetanka; Pille, Andres; Rednic, Simona; Vlad, Violeta; Zlnay, Martin; Balint, Peter V