MELSKI , Krzysztof. The Fleet of Air Carriers Operating in Regular Traffic on the Polish Market - Structure, Trends, Challenges. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 4, n. 7, p. 59–76, 2016. DOI: 10.18559/SOEP.2016.7.3. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3477. Acesso em: 3 sep. 2026.