%0 conference paper,conference lecture,GKSS report %@ %A Fritsch, D.,Bengtson, G.,Boeddeker, K. W. %D 1993 %J Macromolecules 1992: invited lectures of the 34th IUPAC International Symposium on Macromolecules %N %P 485-497 %T Pervaporation of aqueous-organic and organic-organic mixtures using elastomeric polymer membranes %U %X