1. Best, P. H., D. De Vries& A. Reins, 1984. The macrophytes in the Loosdrecht lakes: a story of their decline in the course of eutrophication. Verh. int. Ver. Limnol. 22: 868?875.
2. Burger-Wiersma, T., M. Veenhuis, H. J. Korthals, C. C. M. Van De Wiel & L. R. Mur, 1986. A new prokaryote containing chlorophylls a and b. Nature 320: 262?264.
3. Ejsmont-Karabin, J., R. D. Gulati & J. Rooth, 1989. Is food availability the main factor controlling the abundance of Euchlanis dilatata lucksiana Haver in a shallow eutrophic lake? Hydrobiologia 186/187: 29?34.
4. Giussani, G. L. Van Liere & B. Moss, 1991. Ecosystem Research in Freshwater Environment Recovery. Mem. Ist. ital. Idrobiol. 48: 1?362.
5. Gulati, R. D., L. Van Liere & K. Siewertsen, 1991. The Loosdrecht lake system: Man's role in its creation, perturbation and rehabilitation. In: O. Ravera (ed.), Terrestrial and aquatic ecosystems: perturbation and recovery pp. 593?606. Ellis Horwood Limited, Chicester.