@misc{abetz_einfuehrung_in_2015, 
author={Abetz, V.},
title={Einfuehrung in die Membrantechnologie},
year={2015},
howpublished = {lecture: Universitaet Hamburg, FB Chemie; WS 2015-2016},
note = {Online available at: \url{} (DOI). Abetz, V.: Einfuehrung in die Membrantechnologie. Universitaet Hamburg, FB Chemie, 2015.}}