“The Right of Temporary Workers to Voluntary Social Security Supplements. Comment on Supreme Court Ruling, 4th, 12-2-2020, RCUD 2802 2017”. Revista de Derecho de la Seguridad Social, Laborum, no. 26 (March 1, 2021): 141–148. Accessed November 6, 2026. https://revista.laborum.es/index.php/revsegsoc/article/view/450.