@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);},
note = {Ohlrogge, K.; Kyburz, E.; Stuerken, K.: Membrane Applications to Control VOC Emissions. 11th World Clean Air and Environment Congress. Durban (ZA), 1998.}}