GUBLER, Lorenz et al. Materials for Polymer Electrolyte Fuel Cells. CHIMIA, [S. l.], v. 58, n. 12, p. 826, 2004. DOI: 10.2533/000942904777677128. Disponível em: https://www.chimia.ch/chimia/article/view/2004_826.. Acesso em: 27 jul. 2024.