Ginard Féron, David. “The Catalan Balearic Communist Federation: Origin, Controversies and Territorial Implantation (1923-1932)”. Cuadernos de Historia Contemporánea 46, no. 2 (September 5, 2024): 519–536. Accessed July 12, 2026. https://revistas.ucm.es/index.php/CHCO/article/view/88323.