SULLIVAN, Edward C. Implementing Value Pricing for U.S. Roadways. European Journal of Transport and Infrastructure Research, [S. l.], v. 3, n. 4, 2003. DOI: 10.18757/ejtir.2003.3.4.4250. Disponível em: https://journals.open.tudelft.nl/ejtir/article/view/4250. Acesso em: 3 may. 2024.