- Prof. Emanuil Ivanov
- Prof. Atanas Tinterov
- Prof.Anton Shourek
- Acad. Lyubomir Chakalov
- Acad. Kiril Popov
- Acad. Ivan Tsenov
- Acad. Nikola Obreshkov
- Acad. Boyan Petkanchin
- Acad. Lyubomir Iliev
- Prof. Yaroslav Tagamlitski
- Prof. Alipi Mateev
- Acad. Blagovest Sendov
- Acad. Borislav Boyanov
- Prof. Racho Denchev
- Prof. Dimitar Skordev