Lethanh, Nam, and Bryan T. Adey. “A Real Option Approach to Determine Optimal Intervention Windows for Multi-National Rail Corridors”. Journal of Civil Engineering and Management 22, no. 1 (December 18, 2015): 38-46. Accessed July 6, 2024. https://jau.vgtu.lt/index.php/JCEM/article/view/2316.