@article{article6e3f6657,
title   = {Production and characterization of Tm3+/Yb3+ codoped waveguides based on PbO–GeO2 thin films},
author = {Assumpção, Thiago Alexandre Alves de and Silva, Davinson Mariano da and Cacho, Vanessa Duarte del and Kassab, Luciana Reyes Pires and Alayo Chávez, Marco Isaías},
year = {2014},
doi = {10.1016/j.jallcom.2013.01.133},
journal   = {Journal of Alloys and Compounds}
}