PINCHUCK, O. P. Principles of fare constructions for passengers transportation in surban and local trains. Science and Transport Progress , [S. l.], n. 38, p. 270–276, 2011. DOI: 10.15802/stp2011/6854. Disponível em: https://stp.ust.edu.ua/article/view/6854. Acesso em: 2 may. 2024.