MARINTSEVA, K. COMPARATIVE ANALYSIS OF CHECK-IN TECHNOLOGIES AT THE AIRPORT. Proceedings of National Aviation University (archive), [S. l.], v. 59, n. 2, p. 97–104, 2014. DOI: 10.18372/2306-1472.59.6799. Disponível em: https://jrnl.nau.edu.ua/index.php/visnik/article/view/6799. Acesso em: 2 feb. 2026.