Anna Sukneva, Prof. Ilya Lezhava, Prof. Natalia Dushkina, Sofia Tugarinova, Irina Pigareva, Marina Pigareva, Ivan Pigarev, Nikolay Pigarev, Dragan Zorić, Nikola Živanić, Snežana Kusovac, Mileta Prodanović, Slavomir Andelićc, Snežana Trivunović, Alfred Schemer, Eva-Maria Höwing, Gerrit Engel, Ina Koltermann, Walter Böhn, Bernd Wolfgang, Frank Arndt, Horst Urban, Manfred Prasser, Delcho Gyurov, Metodi Metodiev, Lilyana Mancheva, Miroslav Borshosh, Alexandru Budisteanu, Ana Runceanu, Gheorghe Popescu, Ionel Burcea, Alexandru Panaitescu, Andrei Pandele, Hermina Ivan, Teodor Frolu, Jonathan Heidelberger