The effect of phosphorus of the photo induced phenomena in 'As IND. 2''S IND. 3' vitreous - Messaddeq, Sandra Helena; Santagneli, Silvia H.; Schneider, José Fabian; Ribeiro, S. J. L.; Messaddeq, Y. (International Symposium on Non-Crystalline Solids - ISNCS, 2007)