Krzywonos, Marek. “Evaluation of Threats Occurring During Provision of Road Transport Services in the EU Territory by Small and Medium-Sized Companies from Poland”. Scientific Journal of Bielsko-Biala School of Finance and Law 23, no. 4 (January 6, 2020): 19–23. Accessed May 5, 2024. https://asej.eu/index.php/asej/article/view/385.