The return of the unlimited ultra-activity collective agreements: a true repeal of the 2012 labour market reform. LABOS Revista de Derecho del Trabajo y Protección Social, [S. l.], v. 3, p. 129–141, 2022. DOI: 10.20318/labos.2022.6644. Disponível em: https://e-revistas.uc3m.es/index.php/LABOS/article/view/6644. Acesso em: 4 feb. 2026.