Franco, I., and L. Carigi. “The Delayed Contribution of Low and Intermediate Mass Stars to Chemical Galactic Enrichment: An Analytical Approach”. Revista Mexicana De Astronomía Y Astrofísica, vol. 44, no. 2, June 2012, pp. 311-23, https://journals.unam.mx/index.php/revmexaa/article/view/20692.