Vandkvalitetsinstituttet.
Marlene Roeckel
D. C. Climenhage
Unknown Author
Darlene D. Kozub
Pak-Shing Cheung
Risk Reduction Engineering Laboratory (U.S.)
Nicolo Savaglio
Adrian G. Smith
B. Halling-Sørensen
Conference on Nitrogen as a Water Pollutant (1975 Copenhagen, Denmark)
Christiane Rieker
Waquoit Bay National Estuarine Research Reserve
Water Environment Federation
Wilfried Kopp
United States. Congress. House. Committee on Oversight and Government Reform