Gordeeva-Pertseva, L.I. (1969). Heterocope borealis (Fischer) v malykh vodoemakh Karelii. On finding of Heterocope borealis (Fischer) in small basins of the Karelia. Gidrobiologicheskii Zhurnal, Saratov 5(6):91-92. (11-xii-1969, Russian.)
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Gordeeva-Pertseva, L.I.
1969
Heterocope borealis (Fischer) v malykh vodoemakh Karelii. On finding of Heterocope borealis (Fischer) in small basins of the Karelia.