Krawiec, Stanisław. “Challenges Concerning the Development of Sustainable Mobility in Cities and Agglomerations”. Regional Barometer. Analyses & Prognoses 14, no. 4 (February 16, 2017): 129–138. Accessed November 8, 2024. https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/473.