@article{article7aed5786,
title   = {Photon-avalanche upconversion in 'Tm POT.3+'-doped fluoroindogallate glasses},
author = {Bell, Maria José Valenzuela and Sousa, Dione Fagundes de and Oliveira, S. L. and Lebullenger, Ronan and Hernandes, Antônio Carlos and Nunes, Luiz Antônio de Oliveira},
year = {2002},
journal   = {Journal of Physics-Condensed Matter}
}