De Castro Garcia, Andrés, and Juan Francisco Romero Quesada. “The European Border and Coast Guard in the Framework of the Integrated Management of External Borders After the Migration Crisis of 2015: Strengths and Challenges”. Journal of the Spanish Institute for Strategic Studies, no. 16 (June 9, 2021): 73–97. Accessed August 17, 2026. https://revista.ieee.es/article/view/2254.