Pe, P., kov., M. Aceves, ., and T. Diaz. “Influence of Segregation Annealing Time on the Gettering Process”. Revista Mexicana De Física, vol. 46, no. 5, Jan. 2000, pp. 485-9, https://rmf.smf.mx/ojs/index.php/rmf/article/view/2999.