@misc{dyck_protonconductive_membranes_2002, 
author={Dyck, A.,Fritsch, D.,Pereira Nunes, S.},
title={Proton-conductive membranes of sulfonated polyphenylsulfone},
year={2002},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Dyck, A.; Fritsch, D.; Pereira Nunes, S.: Proton-conductive membranes of sulfonated polyphenylsulfone. Journal of Applied Polymer Science. 2002. vol. 86, no. 11, 2820-2827.}}