MÁTRAI, Tamás. Cost benefit analysis and ex-post evaluation for railway upgrade projects. Periodica Polytechnica Transportation Engineering, [S. l.], v. 41, n. 1, p. 33–38, 2013. 10.3311/PPtr.7102. Disponível em: https://pp.bme.hu/tr/article/view/7102. Acesso em: 28 may. 2024.