%0 conference lecture %@ %A Roedicker, H., Radke, N., Schroeter, I., Schwarz, H.-H., Jacob, E.-M., Richau, K., Paul, D. %D 1989 %J International Symposium on Membranes for Gas and Vapour Separation; Abstracts %T Pervaporation membranes made from cellulosic materials %U %X