%0 report part %@ %A Prado, L.A.S.de A.,Ponce, M.L.,Pereira-Nunes, S.,Willumeit, R.,Haramus, V.,Goerigk, G.,Schulte, K. %D 2004 %J HASYLAB Annual Report 2003, Part 1 %N %P 961-962 %T SPEEK Membranes Containing Phosphotungstic Acid: Analysis of the Effect of the Inorganic Filler on the Distribution of the Heteropolyacid %U %X