@misc{markert_oekotoxikologisches_seminar_1991, 
author={Markert, B.},
title={Oekotoxikologisches Seminar},
year={1991},
howpublished = {lecture: Universitaet Osnabrueck;},
note = {Markert, B.: Oekotoxikologisches Seminar. Universitaet Osnabrueck, 1991.}}