Xu, Yelin, Miroslaw J. Skibniewski, Yongmei Zhang, Albert P. C. Chan, and John F. Y. Yeung. “Developing a Concession Pricing Model for PPP Highway Projects”. International Journal of Strategic Property Management 16, no. 2 (June 19, 2012): 201-217. Accessed November 23, 2024. https://jest.vgtu.lt/index.php/IJSPM/article/view/4853.