Layer-by-layer films of chitosan, poly(vinyl sulfonic acid), and platinum for methanol electrooxidation and oxygen electroreduction - Cogo, Luciano C.; Batisti, Marcos V.; Silva, Marcelo de Assumpção Pereira da; Oliveira Junior, Osvaldo Novais de; Nart, Francisco Carlos; Huguenin, Fritz (Journal of Power Sources, 2006)