PRZYSTUPA, Krzysztof, Leszek GIL, Andrzej NIEWCZAS, and Daniel PIENIAK. “Working Time of a Polish Professional Driver”. Archives of Transport 52, no. 4 (December 31, 2019): 57–66. Accessed April 17, 2025. https://archivesoftransport.com/index.php/aot/article/view/596.