Classification of benthic biocenoses of the lowland river Tudovka (Tver region, Russia) using community featuresSchletterer, Martin; Füreder, Leopold; Kuzovlev, Vyacheslav V.; Zhenikov, Yuri N.; Fuentes-Pérez, Juan Francisco; Tuhtan, Jeffrey AndrewGeography, environment, sustainability2017 / p. 40-56 : ill http://dx.doi.org/10.24057/2071-9388-2017-10-2-40-56 Finnish-Soviet intercalibration of biological parameters used for monitoring the conditions of the Gulf of FinlandSaava, AstridMeri: report series of the Finnish Institute of Marine Research1980 / p. 78 https://www.ester.ee/record=b1717624*est Spatial distribution of hydrographic and biochemical variables in a small coastal bay : explanation using systems approachLessin, Gennadi; Raudsepp, Urmas; Passenko, Jelena; Altoja, Kristi; Martin, Georg; Sipelgas, LiisBSSC 2009 : [7th Baltic Sea Science Congress 2009] : August 17-21, 2009, Tallinn, Estonia : abstract book2009 / p. 45