@misc{ohlrogge_membrane_applications_1998, 
author={Ohlrogge, K.,Kyburz, E.,Stuerken, K.},
title={Membrane Applications to Control VOC Emissions},
year={1998},
howpublished = {conference lecture: Durban (ZA); September 13-18, 1998},
note = {Online available at: \url{} (DOI). Ohlrogge, K.; Kyburz, E.; Stuerken, K.: Membrane Applications to Control VOC Emissions. 11th World Clean Air and Environment Congress. Durban (ZA), 1998.}}