1. Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production;Smil,2001
2. Wastewater Treatment : Biological And Chemical Processes;Henze,2002
3. Cultural eutrophication of shallow coastal waters: coupling changing anthropogenic nutrient inputs to regional management approaches;Paerl;Limnologica – Ecol. Manage. Inland Waters,1999
4. Effects of chronic and periodic exposure to ammonia on growth and blood physiology in juvenile turbot (Scophthalmus maximus);Foss;Aquaculture,2009
5. M.H.A.v. Eekert, J. Weijma, N. Verdoes, F.E.d. Buisonje, B.A.H. Reitsma, J.v.d. Bulk, Explorative research on innovative nitrogen recovery, Stichting Toegepast Onderzoek Waterbeheer, Amersfoort, 2012.