Reference

S. V. Grebennikov (1982): An experience of the attraction of solitary bees in a micro-reserve near Novosibirsk; [Ru; 5 figs. Date: 23.VI.1982]. – In: GREBENNIKOV, V. S. (ed.). Insect Pollinators of Agricultural Plants. A Col-lection of Scientific Papers. Novosibirsk (Siberian Branch of the V. I. LENIN All-Union Academy of Agricultural Sciences) – : 65 - 76.