@misc{trekamol_silica_with_2009, 
author={Trekamol, Y.,Schieda, M.,Gomes, D.,Schulte, K.,Pereira Nunes, S.},
title={Silica with amphoteric functionalization for proton conductive membranes},
year={2009},
howpublished = {conference lecture: Strasbourg (F); 08.-12.06.2009},
note = {Online available at: \url{} (DOI). Trekamol, Y.; Schieda, M.; Gomes, D.; Schulte, K.; Pereira Nunes, S.: Silica with amphoteric functionalization for proton conductive membranes. E-MRS 2009 Spring Meeting. Strasbourg (F), 2009.}}