BARCZAK, Agnieszka. Time efficiency of transport in Poland. Transport Economics and Logistics, [S. l.], v. 81, p. 19–27, 2019. DOI: 10.26881/etil.2019.81.02. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/znetil/article/view/5327. Acesso em: 29 apr. 2024.