Editorships
- Founding Editor-in-chief, Journal of Microbiological Methods, Elsevier Biomedical Press, Amsterdam, 1982-1998
- Receiving Editor Journal Microbiological Methods, 1998-2001, Emeritus Editor, 2002-2006
- Editor, Applied and Environmental Microbiology, American Society for Microbiology, 1980-1986
- Associate Editor, Journal of Contaminant Hydrology, 1985-1992
- Editorial Board, Annual Review of Microbiology, 1989-1992
- Advisory Board, Series in Ecological and Applied Microbiology, John Wiley & Sons, NY, 1992-2006
- Editorial Board, Environmental Microbiology, 1998-2006