Kowalska, Krystyna. “Non-Market Factors of Competitiveness of Transport, Freight Forwarding and Logistics Companies”. Forum Scientiae Oeconomia 2, no. 4 (December 14, 2014): 5–17. Accessed September 18, 2026. https://ojs.wsb.edu.pl/index.php/fso/article/view/286.