Daszkiewicz, Paweł, Maciej Andrzejewski, Sylwin Tomaszewski, and Łukasz Rymaniak. “Economic and Ecological Analysis of Vehicles Used in Railways”. Transport Economics and Logistics 81 (March 12, 2019): 57–69. Accessed April 29, 2024. https://czasopisma.bg.ug.edu.pl/index.php/znetil/article/view/5330.