V. Pilla, E. Chillcce, E. Rodriguez, T. Catunda, E. Munin, C. Cesar, and L. Barbosa. JOURNAL OF NON-CRYSTALLINE SOLIDS, 352 (32-35):
3598-3602(2006)7th Brazilian Symposium on Glasses and Related Materials/3rd
International Symposium on Non-Crystalline Solids in Brazil, Maringa,
BRAZIL, NOV 13-16, 2005.