@misc{willumeit_strukturbiochemie_ii_2005, 
author={Willumeit, R.},
title={Strukturbiochemie II},
year={2005},
howpublished = {lecture: Universitaet Hamburg, FB Chemie, Biochemie; WS 2005-2006},
note = {Online available at: \url{} (DOI). Willumeit, R.: Strukturbiochemie II. Universitaet Hamburg, FB Chemie, Biochemie, 2005.}}