First findings of the marine species Cyclotella marina (Bacillariophyta) in freshwaters of Europe von S. I. Genkal, L. P. Jarmoshenko, A. G. Okhapkin

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The composition of Cyanoprokaryota in the plankton of Cheboksary reservoir (Nizhniy Novgorod, Russia) von A. G. Okhapkin, E. L. Vodeneeva, O. O. Bondarev

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Assessment of water quality of some right-bank tributaries of the Volga river (Cheboksary reservoir basin) using functional classification of phytoplankton von E. L. Vodeneeva, K. E. Kolomina, E. M. Sharagina, P. V. Kulizin, A. G. Okhapkin

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