@misc{willumeit_biochemische_analytik_2006, 
author={Willumeit, R.},
title={Biochemische Analytik},
year={2006},
howpublished = {lecture: Universitaet Hamburg, FB Chemie;},
note = {Willumeit, R.: Biochemische Analytik. Universitaet Hamburg, FB Chemie, 2006.}}