“Forced Labour, Servitude and Slavery in Europe According to the Productive Sectors: Critical Analysis of the Scope of the Case Law of Article 4 of the European Convention on Human Rights”. UNIVERSITAS. Revista de Filosofía, Derecho y Política, no. 25 (January 17, 2017): 90–138. Accessed December 5, 2025. https://e-revistas.uc3m.es/index.php/UNIV/article/view/3558.