First-Principles Calculations of the Electronic Structures and Optical Properties of Mg- and Sr-Doped $CaF_2$. Journal of Atomic and Molecular Sciences, [S. l.], v. 5, n. 2, p. 110–122, 2014. DOI: 10.4208/jams.072813.091013a. Disponível em: https://global-sci.com/index.php/jams/article/view/14701. Acesso em: 6 dec. 2025.