Classification and assessment of lakes in Germany according to the biological indicator phytoplankton - first results
Brigitte Nixdorf; Ute Mischke; Anja Hoffmann; Mike Hemm; Eberhard Hoehn
2001
Classification of ecological status of lakes and rivers / Saara Bäck and Krister Karttunen (eds.). - Kobenhavn, 2001. - (TemaNord ; 2001, 584), S. 24-27