HUŇAK, J.; KOLÁŘ, P. HETEROGENEITY OF BUSINESS PASSENGERS IN AIR TRANSPORT. Perner’s Contacts, [S. l.], v. 11, n. 4, p. 39–46, 2016. Disponível em: https://pernerscontacts.upce.cz/index.php/perner/article/view/568. Acesso em: 7 kvě. 2024.