KRAGERUP, Jan. Rentabilitet af letbanesystemer. Proceedings from the Annual Transport Conference at Aalborg University, [S. l.], v. 3, n. 1, 1996. DOI: 10.5278/ojs.td.v3i1.3937. Disponível em: https://journals.aau.dk/index.php/td/article/view/3937. Acesso em: 22 nov. 2024.