@misc{schoer_heavy_metals_1988, 
author={Schoer, J., Foerstner, U., Knauth, H.-D.},
title={Heavy metals in the Elbe estuary: historical conceptions, actual research and future perspectives},
year={1988},
howpublished = {conference lecture: Quebec (CDN);},
note = {Schoer, J.; Foerstner, U.; Knauth, H.: Heavy metals in the Elbe estuary: historical conceptions, actual research and future perspectives. International Symposium on the Fate and Effects of Toxic Chemicals in Large Rivers and their Estuaries. Quebec (CDN), 1988.}}