@misc{paul_membrantechnik_quo_2002, 
author={Paul, D.},
title={Membrantechnik, quo vadis?},
year={2002},
howpublished = {Other: editorial},
note = {Online available at: \url{} (DOI). Paul, D.: Membrantechnik, quo vadis?. F & S: Filtrieren und Separieren. 2002. vol. 16, no. 4, 175.}}