Martí Boscà José Vicente. “Gaspar Sentiñón Cerdaña: The Beginning of Libertarian Healthcare in Spain (Part 1: Internationalist Activism)”. Spanish Journal of Environmental Health 21, no. 2 (December 14, 2021): 181–185. Accessed November 11, 2026. https://ojs.diffundit.com/index.php/rsa/article/view/1147.