B. A. Sava, L. Boroica, M. Elisa, Synthesys of rare-earth-doped phosphate glasses with improved optical properties, ROM J PHYS, vol. 43, no. 3, pp. 339-346, 1583-3186, 2013
B. A. Sava, L. Boroica, M. Elisa, Synthesys of rare-earth-doped phosphate glasses with improved optical properties, ROM J PHYS, vol. 43, no. 3, pp. 339-346, 1583-3186, 2013