%0 journal article %@ 0376-7388 %A Pereira Nunes, S.,Ruffmann, B.,Richau, K.,Rikowski, E.,Vetter, S. %D 2002 %J Journal of Membrane Science %N 1-2 %P 215-225 %T Inorganic modification of proton conductive polymer membranes for direct methanol fuel cells %U 1-2 %X