Biology of lower organisms // Proceedings of the Institute of Biology of Internal Water.- Issue.40 (43)

Biology of lower organisms // Proceedings of the Institute of Biology of Internal Water.- Issue.40 (43).- Rybinsk, 1978. -605: TerritoryElectronic letter No. 12502-5335/376 dated May 22, 2017 IBVV RA..Source of an electronic copy: Institute of Biology of Internal Water named afterI.D.Papanin RAS.Site