PALOMINO-MERINO, R. et al. Photo-acoustic properties of nanoTiO2:Er. International Journal of Basic and Applied Sciences, [S. l.], v. 5, n. 4, p. 196–199, 2016. DOI: 10.14419/ijbas.v5i4.5739. Disponível em: https://sciencepubco.com/index.php/ijbas/article/view/5739.. Acesso em: 3 may. 2024.