Urbina Gaitan, C. “The Olympic Triumphs of Silvia and Claudia Poll (1988 and 1996)”. Lecturas: Educación Física Y Deportes, Vol. 23, no. 240, May 2018, pp. 34-46, https://efdeportes.com/efdeportes/index.php/EFDeportes/article/view/68.