@inproceedings{inproceedings214feb47,
title   = {Blue upconversion emission in Tm3+/Yb3+ co-doped Pb2P2O7-Nb2O5-XF2 (X = Mg, Ca, Sr, Ba) glass and glassceramics},
author = {Manzani, Danilo and Ribeiro, S. J},
year = {2019},
publisher = {The American Ceramic Society},
booktitle   = {International Congress on Glass}
}