1. Han, CR., McGauran, R. & Nelen, H. (2017). API and PNR data in use for border control authorities. Secur J 30, 1045–1063/ Retrieved from: https://doi.org/10.1057/sj.2016.4
2. Bellanova, R. O. and Duez, D. (2012) A different view on the ‘making’ of European security: The EU passenger name record system as a socio-technical assemblage. European Foreign Affairs Review 17(2/1): 109–124.
3. Kęsek, R., Boroda, M., & Joźwik, Z. (Eds.). (2016). Addressing security risks at the Ukrainian border through best practices on good governance. Amsterdam, Netherlands: IOS Press.
4. Directive 2004/82/EB (L 261/24)of April 29 2004 on the obligation of carriers to communicate passenger data. Retrieved from: https://eurlex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32004L0082
5. Directive (EU) 2016/681 of the European Parliament and of the Council of April 27 2016 on the use of passenger name record (PNR) data for the prevention, detection, investigation and prosecution of terrorist offenses and serious crime. Retrieved from: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32016L0681.