THORLACIUS, P.; CLAUSEN, J. Scheduling of inspectors for ticket spot checking in urban rail transportation. Proceedings from the Annual Transport Conference at Aalborg University, [S. l.], v. 15, n. 1, 2008. DOI: 10.5278/ojs.td.v15i1.5342. Disponível em: https://journals.aau.dk/index.php/td/article/view/5342. Acesso em: 2 may. 2024.