1. HOSPER, S.H., 1980. Development of limiting values for transparency, chlorophyll, phosphate and nitrogen. Results of the eutrophication survey in The Netherlands (in Dutch). CUWVO-Riza, Lelystad.
2. HOSPER, S.H., 1984. Restoration of Lake Veluwe, The Netherlands, by reduction of phosphorus loading and flushing. Wat. Sci. Tech., 17:757–768.
3. VAN STRATEN, G., 1985. The process of eutrophication model development with comparative examples from Lake Balaton and Lake Veluwe. Hungarian-Dutch Seminar on Water Management Problems of Shallow Eutrophic Freshwater Lakes. April 22–26, 1985, Siofok, Hungary. Hungarian National Water Authority and the Ministry of Transport and Public Works of the Netherlands.