Reference

V. B. Beiko, M. V. Berezin (2000): Hymenoptera in the «Red Data Book of the city of Mos-cow»; [Ru. Date: [31.XII].2000]. – In: ROZHNOV, V. V., et al. (editorial board). Animals in a Town. The Scientific-Practical Conference [23-24 May 2000]. Abstracts. Moscow (A. N. SEVERTSOV Institute of Problems in Ecology and Evolution, Russian Academy of Sciences) – : 69 - 71.