Reference

M. A. Filatov (1987): On the structure of wild bee communities in agricultural landscapes of the north-eastern Ukraine; p. 209. [Ru. Date: 8.VI.1987]. – In: VASIL'YEV, N. P. (ed.). The 3rd Congress of the Ukrainian Entomological Society (Kiev, September 1987). Abstracts. Kiev (Ukrainian Entomological Society) – .