Guo, Yubo, Chuan Chen, Xiaowei Luo, and Igor Martek. “Determining Concessionary Items for ‘availability Payment only’ PPP Projects: A Holistic Framework Integrating Value-for-Money and Social Values”. Journal of Civil Engineering and Management 30, no. 2 (February 13, 2024): 149–167. Accessed November 25, 2024. https://jcem.vgtu.lt/index.php/JCEM/article/view/20841.