@misc{kneifel_preparation_of_1992, 
author={Kneifel, K.,Peinemann, K.-V.},
title={Preparation of hollow fiber membranes from polyetherimide for gas separation},
year={1992},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Kneifel, K.; Peinemann, K.: Preparation of hollow fiber membranes from polyetherimide for gas separation. Journal of Membrane Science. 1992. vol. 65, 295-307.}}