Rucińska, Danuta, and Małgorzata Kędzior-Laskowska. “Sustainable Transport Development and the Quality of Road Freight Transport”. Transport Economics and Logistics 76 (March 5, 2018): 33–47. Accessed May 6, 2024. https://czasopisma.bg.ug.edu.pl/index.php/znetil/article/view/2907.