Yilmaz, R., and K. Arici. “Calculation of Coster-Kronig Enhancement Factors and L Subshell X-Ray Fluorescence Cross-Sections for 55Cs”. Asian Journal of Chemistry, vol. 22, no. 7, June 2010, pp. 5463-7, https://asianpubs.org/index.php/ajchem/article/view/11766.