“The National Social Security Institute Can Declare the Joint and Several Liability of a City Council With Respect to a Debt Contracted by a Commercial Company in Bankruptcy When It Acts in a Similar Way to So-Called ‘company Groups’”. Revista de Derecho de la Seguridad Social, Laborum, no. 24 (September 8, 2020): 137–151. Accessed November 6, 2026. https://revista.laborum.es/index.php/revsegsoc/article/view/422.