@misc{schwarz_symplex_membranes_1991, 
author={Schwarz, H.-H.,Richau, K.,Paul, D.},
title={Symplex membranes for pervaporation},
year={1991},
howpublished = {conference paper,conference lecture: Heidelberg (D); 11.-15.03.1991},
note = {Online available at: \url{} (DOI). Schwarz, H.; Richau, K.; Paul, D.: Symplex membranes for pervaporation. In: Bakish, R. (Ed.): Proceedings of the Fifth International Conference on Pervaporation Processes in the Chemical Industry. Heidelberg (D). 1991. 79-87.}}