POŁOM, M. International Relations on the Market of Trolleybus’ Manufacturers in Europe in the Years 2000–2014. Studies of the Industrial Geography Commission of the Polish Geographical Society, [S. l.], v. 30, n. 3, p. 75–90, 2017. DOI: 10.24917/20801653.303.6. Disponível em: https://prace-kgp.uken.krakow.pl/article/view/3292. Acesso em: 22 jul. 2024.