@inproceedings{inproceedings3f0e68f2,
title   = {Structural and spectroscopic study of 'Er POT.3+' and 'Er POT. 3+'/'Yb POT.3+' activated Hf'O IND.2' powders and films},
author = {Gonçalves, Rogéria Rocha and Ribeiro, Sidney J. L. and Ferrari, Maurizio},
year = {2007},
publisher = {International Sol-Gel Society},
booktitle   = {International Sol-Gel Conference}
}