Lytvynenko, Anatoliy, Viktor Sarancha, and Viktoriia Shabunina. 2021. “MAN Trolleybuses in Ukraine (1939–1951): A History, Technical Characteristics, Features of Operation”. History of Science and Technology 11 (2), 411-36. https://doi.org/10.32703/2415-7422-2021-11-2-411-436.