Pérez Calle, Begoña, and José Luis Malo Guillén. “Leon XIII and the Franciscan Tertiary: A Condemnation of Pauperism at the Dawn of Social Catholicism”. Iberian Journal of the History of Economic Thought, vol. 5, no. 1, May 2018, pp. 45-56, https://doi.org/10.5209/IJHE.60280.