Micro- and nanocompoosites of Keggin heteropolymetalates in cellulose esters - Oliveira, Francilio D.; Schneider, José Fabian; Siervo, Abner; Landers, Richard; Plepis, Ana Maria de Guzzi; Pireaux, Jean-Jacques; Rodrigues Filho, Ubirajara Pereira (Surface and Interface Analysis, 2002)