@misc{ruffmann_organicinorganic_composite_2003, 
author={Ruffmann, B.,Silva, H.,Schulte, B.,Pereira Nunes, S.},
title={Organic/inorganic composite membranes for application in DMFC},
year={2003},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Ruffmann, B.; Silva, H.; Schulte, B.; Pereira Nunes, S.: Organic/inorganic composite membranes for application in DMFC. Solid State Ionics. 2003. vol. 162-163, 269-275.}}