@misc{schwarz_polyelectrolyte_membranes_1994, 
author={Schwarz, H.-H.,Richau, K.,Paul, D.},
title={Polyelectrolyte membranes in pervaporation},
year={1994},
howpublished = {conference lecture: Breckenridge, CO (USA); 21.-25.05.1994},
note = {Online available at: \url{} (DOI). Schwarz, H.; Richau, K.; Paul, D.: Polyelectrolyte membranes in pervaporation. 6th Annual Meeting of the North American Membrane Society. Breckenridge, CO (USA), 1994.}}