KÖLTZSCH, Gregor. Biometric technologies in passenger clearance. Aviation, [S. l.], v. 10, n. 4, p. 18–24, 2006. DOI: 10.3846/16487788.2006.9635943. Disponível em: https://journals.vilniustech.lt/index.php/Aviation/article/view/7395. Acesso em: 9 may. 2025.