Acosta Sánchez, Miguel Ángel. “Regarding the Scope of Competence of Peacekeeping operations:: The Comprehensive Approach of UN Military Operation Sophia in View of the Migration Crisis”. Journal of the Spanish Institute for Strategic Studies, no. 12 (November 27, 2018): 15–48. Accessed July 28, 2026. https://revista.ieee.es/article/view/745.