@misc{richau_continuous_bipolar_2000, 
author={Richau, K.,Klug, P.,Malsch, G.,Swoboda, R.,Weigel, T.,Ziegler, J.},
title={Continuous bipolar membrane preparation},
year={2000},
howpublished = {conference lecture: Enschede (NL); 25.-27.10.2000},
note = {Online available at: \url{} (DOI). Richau, K.; Klug, P.; Malsch, G.; Swoboda, R.; Weigel, T.; Ziegler, J.: Continuous bipolar membrane preparation. Conference on Electro-Membrane Processes and Bipolar Membrane Technology. Enschede (NL), 2000.}}