@misc{richau_polyelectrolyte_complex_1991, 
author={Richau, K.,Schwarz, H.-H.,Paul, D.},
title={Polyelectrolyte complex membranes obtained by interfacial reaction: preparation and properties},
year={1991},
howpublished = {conference paper,conference lecture: Twente, Enschede (NL); 25.-28. Juni 1991},
note = {Online available at: \url{} (DOI). Richau, K.; Schwarz, H.; Paul, D.: Polyelectrolyte complex membranes obtained by interfacial reaction: preparation and properties. In: Conference on Progress in Membrane Science and Technology; Abstracts. Twente, Enschede (NL). 1991. 117.}}