International Symposium "Conservation of Natural Areas and of the Genetic Material They Contain"--Project 8 on the Programme "Man and the Biosphere" (MAB) of UNESCO (1985 Blagoevgrad, Bulgaria)

• Mezhdunaroden simpozium "Opazvane na prirodnite teritorii i sŭdŭrzhashtii͡a︡ se v ti͡a︡kh genetichen fond" po Proekt 8 na Programata "Chovek i biosfera" (MAB)--I͡U︡NESKO