Water quality objectives for mixtures of toxic chemicals: problems and perspectives

Vighi, M; Altenburger, R; Arrhenius, A; Backhaus, T; Bodeker, W; Blanck, H; Consolaro, F; Faust, M; Finizio, A; Froehner, K; Gramatica, Paola; Grimme, Lh; Gronvall, F; Hamer, V; Scholze, M; Walter, H.