Reference

A. I. Ivanov, A. A. Zhuravlev, T. A. Voloshina, Yuriy Andreyevich Pesenko (1983): The Propaga-tion of the Alfalfa Leaf-Cutter Bee and Its Utilisation for Pollination of Seed Lucerne. Methodical In-structions. — 80 pp.; [Ru; 18 figs., 8 tabs., 42 refs. Date: 27.V.1983]. – Leningrad (All-Union Research Institute of Plant Growing) – .