KOVAL, V. A. Change of form of sliding contacts in the process of exploitation of electric city transport. Science and Transport Progress , [S. l.], n. 42, p. 94–97, 2012. DOI: 10.15802/stp2012/9292. Disponível em: https://stp.ust.edu.ua/article/view/9292. Acesso em: 25 apr. 2024.