%0 conference poster %@ %A Recio, R.,Pradanos, P.,hernandez, A.,Shishatskiy, S.,Peinemann, K.-V.,Bottino, A.,Capannelli, G. %D 2007 %J New Materials for Membranes, Marie Curie Training and Conferences on Membrane Technology %N %P %T Asymmetric membranes for gas separation. Different techniques to determine the active dense skin thickness %U %X