Daphnia bioassay : analyzing drinking water for toxic effectsTrubetskova, I.L.; Vilu, Raivo; Minko, S.L.Joint Conference of Scandinavian Society of Cell Toxicology and Estonian Society of Toxicology : (SSCT & ETS 98) : Tallinn, October 23-26, 1998 : program and abstracts1998 / l. 62