The concept of a public groups of companies. Extension of labor liability. LABOS Revista de Derecho del Trabajo y Protección Social, [S. l.], v. 3, n. 1, p. 96–120, 2022. DOI: 10.20318/labos.2022.6847. Disponível em: https://e-revistas.uc3m.es/index.php/LABOS/article/view/6847. Acesso em: 5 dec. 2025.