@misc{boeddeker_membrane_technology_2000, 
author={Boeddeker, K.W.},
title={Membrane Technology},
year={2000},
howpublished = {lecture: TU Hamburg-Harburg; WS 2000-2001},
note = {Online available at: \url{} (DOI). Boeddeker, K.: Membrane Technology. TU Hamburg-Harburg, 2000.}}