Kanellopoulos, Anastasios Nikolaos. “The European Travel Information and Authorization System (ETIAS): Enhancing Counterterrorism and Counterintelligence Efforts”. HAPSc Policy Briefs Series 4, no. 2 (December 31, 2023): 26–34. Accessed May 12, 2024. https://ejournals.epublishing.ekt.gr/index.php/hapscpbs/article/view/36658.