@misc{ohlrogge_vapor_recovery_1995, 
author={Ohlrogge, K.},
title={Vapor recovery with membranes},
year={1995},
howpublished = {conference lecture: Geesthacht (D);},
note = {Ohlrogge, K.: Vapor recovery with membranes. ESMST XII, Annual Summer School. Geesthacht (D), 1995.}}