YUE, Guoyong; HUANG, Yujie; ZHANG, Zhipeng; HU, Hao. Mid-Term Revenue Risk Assessment Model for Railway Public-Private Partnership Projects Based on Copula-NPVaR. Promet - Traffic&Transportation, [S. l.], v. 38, n. 1, p. 156–168, 2026. DOI: 10.7307/ptt.v38i1.1079. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1079. Acesso em: 30 jan. 2026.