@misc{ohlrogge_new_developements_1993, 
author={Ohlrogge, K.,Wind, J.,Behling, R.-D.},
title={New developements for the removal of hydrocarbon vapors from air},
year={1993},
howpublished = {conference lecture: Heidelberg (D); 31. August -3. September 1993},
note = {Online available at: \url{} (DOI). Ohlrogge, K.; Wind, J.; Behling, R.: New developements for the removal of hydrocarbon vapors from air. ICOM '93: The International Congress on Membranes and Membrane Processes. Heidelberg (D), 1993.}}