Eutrophication: reasons for satisfaction or concern?
Beukema, J. (1986). Eutrophication: reasons for satisfaction or concern?, in: Peet, G. (Ed.) The status of the North Sea Environment: Reasons for Concern, Proceedings of the 2nd North Sea Seminar 1986, Rotterdam, 1, 2, 3 October 1986: vol. 2. pp. 25-38