POLIAKOVÁ, A. HOW TO OBTAIN THE QUALITATIVE INFORMATION IN ROAD TRANSPORT. Perner’s Contacts, [S. l.], v. 5, n. 3, p. 265–270, 2010. Disponível em: https://pernerscontacts.upce.cz/index.php/perner/article/view/1018. Acesso em: 17 may. 2024.