%0 conference lecture %@ %A Richau, K., Weigel, T., Klug, P., Malsch, G., Swoboda, R., Ziegler, H.-J., Otto, S., Martens, U., Kneifel, K., Paul, D. %D 1998 %J NAMS '98 %T Bipolar Membranes – Preparation and Characterization %U %X