%0 conference lecture (invited) %@ %A Pereira Nunes, S., Peinemann, K.-V., Zoppi, R. A., Sforca, M. L., Yoshida, I. V. %D 1998 %J IV. Congreso Iberoamericano de Polimeros %T Organic-Inorganic Polymer Hybrids – Membrane Applications %U %X