@inproceedings{inproceedings9b0709af,
title   = {Crack free Er/Yb activated sol-gel 'Si'O IND.2'-Hf'O IND.2' films on silicon},
author = {Sigoli, Fernando A. and Gonçalves, Rogéria Rocha and Mendoza, Edgar A. and Ribeiro, Sidney J. L. and Messaddeq, Younes},
year = {2005},
booktitle   = {International Workshop on Sol-Gel Science and Technology}
}