Stopka, O. a Šulgan, M. (2011) „RECOMMENDATIONS FOR THE SUPPORT OF THE INTERMODAL TRANSPORT DEVELOPMENT IN THE SLOVAK REPUBLIC", Perner’s Contacts, 6(2), s. 140–144. Dostupné z: https://pernerscontacts.upce.cz/index.php/perner/article/view/840 (Viděno: 7 květen 2024).