@misc{almasri_new_polyimides_2000, 
author={Al-Masri, M.,Fritsch, D.,Kricheldorf,H.R. and },
title={New Polyimides for Gas Separation, 2. Polyimides Derived from Substituted Catechol Bis(etherphthalic anhydride)s},
year={2000},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Al-Masri, M.; Fritsch, D.; Kricheldorf, H.: New Polyimides for Gas Separation, 2. Polyimides Derived from Substituted Catechol Bis(etherphthalic anhydride)s. Macromolecules. 2000. vol. 33, no. 19, 7127-7135.}}