“Early Retirement on Grounds of Activity and the Principle of Non-Discrimination. Analysis of the Ruling of the Supreme Court (Contentious-Administrative Chamber, 4th Section) No. 1140 2022, of 14 September”. 2023. Revista de Derecho de la Seguridad Social, Laborum, no. 35 (June): 115-23. https://revista.laborum.es/index.php/revsegsoc/article/view/773.