“CARLOS DEL PESO Y CALVO (1910-1992): The Long and Disputed Process of Construction of the Social Security System”. Revista de Derecho de la Seguridad Social, Laborum, no. 21 (December 27, 2019): 265–276. Accessed November 6, 2026. https://revista.laborum.es/index.php/revsegsoc/article/view/390.