Photoinduced effects in 'Ge IND.25''Ga IND.10''S IND.65' glasses studied by XPS and XAS - Mastelaro, Valmor Roberto; Lisboa Filho, P. N.; Schreiner, W. H.; Messaddeq, S. H.; Siu Li, Máximo; Messaddeq, Y.; Pare, P.; Laffon, C. (International Conference on the Structure of Non-Crystalline Materials, 2004)