Structural properties of fluorophosphate glasses studied by solid state NMR and Raman spectroscopy - Schneider, José Fabian; Oliveira, S. L.; Lebullenger, Ronan; Hernandes, Antônio Carlos; Nunes, Luiz Antônio de Oliveira; Panepucci, Horácio Carlos (International Symposium on Non-Crystalline Solids in Brazil, 2001)