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Starobogatov Ya.I., Prozorova L.A.. Zatravkin M.N. (1989). Species composition of the family Physidae (Gastropoda Pulmonata Lymnaeiformes) of Siberia and Far East of the USSR (with notes on European physids). Byulleten' Moskovskogo Obshchestva Ispytateley Pripody, otdel biologicheskiy. 94(1): 62-78. (in Russian).
Starobogatov Ya.I., Prozorova L.A.. Zatravkin M.N. (1989). Species composition of the family Physidae (Gastropoda Pulmonata Lymnaeiformes) of Siberia and Far East of the USSR (with notes on European physids). Byulleten' Moskovskogo Obshchestva Ispytateley Pripody, otdel biologicheskiy. 94(1): 62-78. (in Russian).
