%0 journal article %@ 0376-7388 %A Ponce, M.L.,Prado, L.,Ruffmann, B.,Richau, K.,Mohr, R.,Pereira Nunes, S. %D 2003 %J Journal of Membrane Science %N %P 5-15 %T Reduction of Methanol Permeability in Polyetherketone-Heteropolyacid Membranes %U %X