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Conservation of freshwater pearl mussel Margaritifera margaritifera populations in Northern Europe : proceedings of the International workshop, Petrozavodsk, Russia, April 28-30, 2009 / Institute of biology KRC of RAS; Edited: Ieshko E.P., Lindholm T. — Petrozavodsk : Karelian Research Centre of RAS, 2010. — 112 с.
