Dziaduch, Izabela. “THE DEGREE OF SUSTAINABLE DEVELOPMENT PRINCIPLES IMPLEMENTATION IN TRANSPORTATION BASED ON AN ECONOMIC ANALYSIS OF RAIL BUSES’ LIFE CYCLE”. Economics and Environment 78, no. 3 (November 10, 2021): 8–29. Accessed December 27, 2024. https://ekonomiaisrodowisko.pl/journal/article/view/389.