Lytvynenko, A., V. Sarancha, and V. Shabunina. “MAN Trolleybuses in Ukraine (1939–1951): A History, Technical Characteristics, Features of Operation”. History of Science and Technology, Vol. 11, no. 2, Dec. 2021, pp. 411-36, doi:10.32703/2415-7422-2021-11-2-411-436.