Reference

D. I. Berman, E. A. Tikhmenev (1979): Quantitative estimation of the importance of insect pollinators of plants in the mountain tundra of the Okhotsk-Kolyma Plateau; [Ru. Date 28.V.1979]. – In: SYRO-YECHKOVSKIY, E. E. (ed.). The 14th Pan-Pacific Scientific Congress (Khabarovsk, August 1979). Committee A. Section A-II. Abstracts. Moscow (Pan-Pacific Scientific Association) – : 11 - 12.