@inproceedings{inproceedings61088380,
title   = {Lead oxyfluoroborate glasses doped with rare-earth elements},
author = {Ribeiro, C. T. M. and Custódio, Maria Cláudia Cerchiari and Lebullenger, Ronan M and Siu Li, Máximo and Hernandes, Antônio Carlos},
year = {1997},
booktitle   = {Symposium on Lasers and their Applications}
}