MEMBERSHIP IN COMMITTEES AND SOCIETIES:

IAS (Intern, Assoc. of Sedimentologists),
AGP (Assoc. of the geologists of Permien),
FROMAGE (Friends of Marine Autigenesis),
Builgarian Geological Society,
Union of the Scientists of Bulgaria,
The Sci.-Techn.Union of Bulbaria;
Geol. Soc. of Cuba (1979-1982)
and other.