@misc{bengtson_pervaporation_of_1989, 
author={Bengtson, G.,Boeddeker, K. W.,Pingel, H.},
title={Pervaporation of isomeric butanols},
year={1989},
howpublished = {conference lecture: Ft. Lauderdale, FL (USA); 03.-07.12.1989},
note = {Online available at: \url{} (DOI). Bengtson, G.; Boeddeker, K.; Pingel, H.: Pervaporation of isomeric butanols. Fourth International Conference on Pervaporation Processes in the Chemical Industry. Ft. Lauderdale, FL (USA), 1989.}}