Bertalan Farkas and Georgi Ivanov, share which mutual occupation?
Bertalan Farkas: Bertalan Farkas (born August 2, 1949) is the first Hungarian cosmonaut and the first Esperantist in space. Georgi Ivanov: Major general Georgi Ivanov Kakalov (Bulgarian: Георги Иванов Какалов ; born July 2, 1940) is a retired Bulgarian military officer and the first Bulgarian cosmonaut.
cosmonaut