NMR and conductivity study of structure and dynamics in 'B IND.2''O IND.3' - PbO -'Li IND.2'O - LiF glasses - Donoso, José Pedro; Lima, R. P.; Tambelli, C. E.; Souza, J. E.; Hernandes, Antônio Carlos; Mastelaro, Valmor Roberto; Schneider, José Fabian; de Camargo, Andrea Simone Stucchi; Eckert, Hellmut; Araujo, C. C.; Cattaneo, Alice (International Symposium on Non-Crystalline Solids - ISNCS, 2007)