@misc{behling_separation_of_1988, 
author={Behling, R.-D.,Ohlrogge, K.,Peinemann, K.-V.},
title={Separation of hydrocarbon vapors from air},
year={1988},
howpublished = {conference lecture: Cambridge, MA (USA); November 1-3, 1988},
note = {Online available at: \url{} (DOI). Behling, R.; Ohlrogge, K.; Peinemann, K.: Separation of hydrocarbon vapors from air. The 1988 Sixth Annual Membrane Technology/Planning Conference. Cambridge, MA (USA), 1988.}}