“Notes on the contributions of Royal Decree-Law 28/2018 of 28 December on the pension system and on ‘forced retirement’” (2019) Revista de Derecho de la Seguridad Social, Laborum, (18), pp. 13–25. Available at: https://revista.laborum.es/index.php/revsegsoc/article/view/330 (Accessed: 6 November 2026).