1. Clean Coastal Waters: Understanding and Reducing the Effects of Nutrient Pollution;National Research Council,2000
2. Eutrophication of freshwater and marine ecosystems;Smith;Limnol. Oceanogr.,2006
3. Eutrophication science: where do we go from here?;Smith;Trends Ecol. Evol.,2009
4. European Communities, Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for community action in the field of water policy, Official Journal of the European Communities, vol. 327, 2000, pp. 1–72.
5. Water framework directive: ecological classification of Danish lakes;Søndergaard;J. Appl. Ecol.,2005