@misc{meissner_contaminants_in_1992, 
author={Meissner, R.},
title={Contaminants in German lakes and rivers; interactions between soil using and water quality},
year={1992},
howpublished = {conference lecture: Winnipeg (CDN);},
note = {Meissner, R.: Contaminants in German lakes and rivers; interactions between soil using and water quality. Seminar of the Freshwater Institute Winnipeg. Winnipeg (CDN), 1992.}}