1. J. Dupuit, On tolls and transport charges, Annales des Pont et Chaussees 17 (1894) 445-467, also translated in International Economic Papers, Macmillan, London, 1952.
2. H. R. Varian, Microeconomic Analysis, 3rd Edition, W.W. Norton & Company, 1992.
3. A. C. Pigou, The Economics of Welfare, 4th Edition, London: Macmillan and Co., 1932.
4. J. Y. Wang, R. Lindsey, H. Yang, Nonlinear pricing on private roads with congestion and toll collection costs, Transportation Research Part B: Methodological 45 (1) (2011) 9-40.
5. Nonlinear pricing on transportation networks;Lawphongpanich;Transportation Research Part C: Emerging Technolo- gies,2012