@misc{ohlrogge_recovery_of_1996, 
author={Ohlrogge, K.},
title={Recovery of organic vapors from air},
year={1996},
howpublished = {conference lecture: Enschede (NL);},
note = {Ohlrogge, K.: Recovery of organic vapors from air. Toepassing van membranen bij milieuproblemen. Enschede (NL), 1996.}}