XIAO, F.; ZHANG, H. M. Pareto-improving toll and subsidy scheme on transportation networks. European Journal of Transport and Infrastructure Research, [S. l.], v. 14, n. 1, 2014. DOI: 10.18757/ejtir.2014.14.1.3015. Disponível em: https://journals.open.tudelft.nl/ejtir/article/view/3015. Acesso em: 16 jan. 2022.