Fluoresence of fluorindate glasses doped with 'Tm POT.3+' - Miazato, Kalyne; Nunes, Luiz Antônio de Oliveira; Delben, Angela Antonia Sanches Tardivo; Delben, Jose Renato Jurkevics; Sousa, Dione Fagundes de; Oliveira, Samuel L de (Brazilian Symposium on Glasses and Related Materials, 1999)