@misc{gomes_novel_proton_2006, 
author={Gomes, D.,Buder, I.,Pereira Nunes, S.},
title={Novel Proton Conductive Membranes containing Sulfonated Silica},
year={2006},
howpublished = {conference lecture: Taormina (I); 24.-28.09.2006},
note = {Online available at: \url{} (DOI). Gomes, D.; Buder, I.; Pereira Nunes, S.: Novel Proton Conductive Membranes containing Sulfonated Silica. Euromembrane 2006. Taormina (I), 2006.}}