1. Biofilm
Centre, University of Duisburg-Essen, Universitätsstrasse 5, 45141 Essen, Germany
2. Institute
of Groundwater Ecology, Helmholtz Zentrum München, Ingolstädter
Landstrasse 1, 85764 Neuherberg, Germany
3. Instrumental
Analytical Chemistry, University of Duisburg-Essen, Universitätsstr. 5, 45141 Essen, Germany
4. Chair
of Analytical Chemistry and Water Chemistry, Technical University of Munich, Marchioninistrasse 17, D-81377 Munich, Germany
5. RWW Rheinisch-Westfälische
Wasserwerksgesellschaft mbH, Am Schloß
Broich 1-3, 45479 Mülheim an der Ruhr, Germany