Dziaduch, Izabela. “THE DEGREE OF SUSTAINABLE DEVELOPMENT PRINCIPLES IMPLEMENTATION IN TRANSPORTATION BASED ON AN ECONOMIC ANALYSIS OF RAIL BUSES’ LIFE CYCLE”. Ekonomia i Środowisko - Economics and Environment 78, no. 3 (November 10, 2021): 8–29. Accessed August 9, 2022. https://www.ekonomiaisrodowisko.pl/journal/article/view/389.