@misc{lendlein_active_biomaterials_2007, 
author={Lendlein, A.},
title={Active Biomaterials},
year={2007},
howpublished = {conference lecture: Berlin (D); 25.06.2007},
note = {Online available at: \url{} (DOI). Lendlein, A.: Active Biomaterials. Wollenberger Seminar. Berlin (D), 2007.}}