EGE, H. Har ” tid” værdien 0 i samfundsøkonomien?. Proceedings from the Annual Transport Conference at Aalborg University, [S. l.], v. 6, n. 1, 1999. DOI: 10.5278/ojs.td.v6i1.4483. Disponível em: https://journals.aau.dk/index.php/td/article/view/4483. Acesso em: 30 apr. 2024.