Reference

V. A. Kuryuchkin, L. N. Parfenova, V. A. Ponomarev, M. V. Kachkin, V. I. Ashcheulov (1999): A contribution to the formation of concretions in Bombus terrestris; p. 45. [Ru. Date: 12.IX.1999]. – In: BEREZIN, M. V. (compiler). The 5th International Colloquium on Social Insects (Moscow, 4-8 October 1999). Abstracts. Moscow (Moscow State University) – .