“Towards equal treatment in access to the widow’s pension for stable partners: some considerations on the concept of unmarried partners and the new features of Law 21/2021 of 28 December on guaranteeing the purchasing power of pensions”., RCDI, no. 792, p. 2291 a 2311, Aug. 2022, Accessed: Oct. 24, 2026. [Online]. Available: https://revistacritica.es/index.php/rcdi/article/view/610