HAJDA, O. .; KRAUS, J. ECONOMIC EVALUATION OF SAFETY IMPROVEMENTS IN AVIATION. Perner’s Contacts, [S. l.], v. 9, n. 2, p. 6–14, 2014. Disponível em: https://pernerscontacts.upce.cz/index.php/perner/article/view/633. Acesso em: 22 lis. 2024.