@misc{dyck_membranes_for_2000, 
author={Dyck, A.},
title={Membranes for fuel cells},
year={2000},
howpublished = {conference lecture (invited): Aachen (D); 07.-08.09.2000},
note = {Online available at: \url{} (DOI). Dyck, A.: Membranes for fuel cells. Network Young Membraines. Aachen (D), 2000.}}