Er:Y'Al IND.3''(B'O IND.3') IND.4' glassy thin films from polymeric precursor and sol-gel methods: waveguides for integrated optics - Maia, L. J. Q.; Mastelaro, Valmor Roberto; Hernandes, Antônio Carlos; Fick, J.; Ibanez, A. (Thin Solid Films, 2009)