@misc{ohlrogge_the_separation_1990, 
author={Ohlrogge, K.,Peinemann, K.-V.,Wind, J.,Behling, R.-D.},
title={The separation of hydrocarbon vapors with membranes},
year={1990},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Ohlrogge, K.; Peinemann, K.; Wind, J.; Behling, R.: The separation of hydrocarbon vapors with membranes. Separation Science and Technology. 1990. vol. 25, 1375-1386.}}