Meyer, D (Reprint Author), IRSTEA, CEMAGREF, Freshwater Syst, Ecol & Pollut Res Unit, 5 Rue Doua,CS70077, F-69626 Villeurbanne, France.
Meyer, Daniel, IRSTEA, CEMAGREF, Freshwater Syst, Ecol & Pollut Res Unit, F-69626 Villeurbanne, France.
Dittmer, Ulrich, Univ Stuttgart, ISWA, Inst Sanit Engn Water Qual & Solid Waste Manageme, D-70569 Stuttgart, Germany.