@article{article092821ba,
title   = {Erbium luminescente from hydrogenated amorphous silicon-erbium prepared by cosputtering},
author = {Zanatta, Antonio Ricardo and Nunes, Luiz Antônio de Oliveira and Tessler, L R},
year = {1997},
doi = {10.1063/1.118196},
journal   = {Applied Physics Letters}
}