Anthropogenic eutrophication of the Neva estuary and eastern part of the Gulf of FinlandTsvetkova, Ludmila I.; Kopina, G.I.; Ponomareva, V.N.Theses of the reports of the VIII Symposium Concerning the Problems of Waterbodies Water Quality, Tallinn, Oct. 23-25, 19901990 / p. 76-79: ill

Dynamics of organic matter concentration in the Neva estuary bottom sediments during 1975-1989Kopina, G.I.Theses of the reports of the VIII Symposium Concerning the Problems of Waterbodies Water Quality, Tallinn, Oct. 23-25, 19901990 / p. 37-39