Glass-to-crystal transition and electrical conductivity in the system Na1+xAlxM2-x(PO4)3 (M = Ge, Ti): a solid state NMR study - Bradtmüller, H.; Nieto, A. M. M.; Ortiz, F.; Rodrigues, A. C. M.; Eckert, Hellmut (Brazilian Symposium on Glass and Related Materials - BRAZGLASS, 2017)