WOLAŃSKI, Michał; PIERÓG, Mateusz. The development of public transport in Poland in 2009-2015. AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe, [S. l.], v. 18, n. 6, p. 25–29, 2017. DOI: 10.24136/atest.2017.022. Disponível em: https://journals.economic-research.pl/atest/article/view/666. Acesso em: 28 may. 2024.