KRAWCZYK, Grzegorz. Conditions for the functioning of regulated competition on the public urban transport market in Poland. Transport Economics and Logistics, [S. l.], v. 80, p. 119–127, 2018. DOI: 10.26881/etil.2018.80.13. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/znetil/article/view/2860. Acesso em: 5 may. 2024.