Guzmán Ávalos, A., and M. del C. Valdés Martínez. “Voluntad Procreacional (Procreational Will)”. Oñati Socio-Legal Series, vol. 7, no. 1, Sept. 2015, pp. 75-96, https://opo.iisj.net/index.php/osls/article/view/673.