@article{Butorina_1999 author = {L. G. Butorina}, title = {The Regularities of Reproduction of Cladocera of the Freshwater Shoals (Polyphemus pediculus L., Onychopoda)}, journal = {Hydrobiological Journal}, issn = {0018-8166}, year = {1999}, volume = {35}, number = {2}, pages = {56--74} }