@article{article914c9117, title = {XPS analysis of bridging and non-bridging oxygen in Yb3+-Er3+-Tm3+-doped zinc-tellurite glasses}, author = {Huaman, Jose Luis Clabel and Calderón, Gaston Lozano and Marega Junior, Euclydes and Rivera, V. A. G.}, year = {2021}, doi = {10.1016/j.jnoncrysol.2020.120520}, journal = {Journal of Non-Crystalline Solids} }