Barreto, J., Boldú, J., del Castillo, H., & Muñoz, E. (2012). Hyperfine interaction of V$_{\text{k}}$ centres in Cs$_{_{2}}$NaYCl$_{6}$ crystals. Revista Mexicana De Física, 58(1), 113–116. Retrieved from https://rmf.smf.mx/ojs/index.php/rmf/article/view/3891