1. Dir Wirkung der Kaliabwasser auf die Fauna der Werra und Wipper;Albrecht;Z. Fisch., N.F.,1954
2. Standard methods for the examination of water and wastewater;American Public Health Service,1969
3. The apparent threshold of toxicity of Daphnia magna for chlorides of various metals when added to Lake Erie water;Anderson;Trans. Am. Fish. Soc.,1948
4. The effect of Metro Kitchener as an urban area on the sediment load and regime of the Grand River;Baechler,1974
5. Die fischereibiologische Belastung in der Werra und Oberwasser durch Kaliendlaugen;Buhse;Die Weser,1973