Ravanshadnia, Mehdi, and Hossein Rajaie. “Semi-Ideal Bidding via a Fuzzy TOPSIS Project Evaluation Framework in Risky Environments”. Journal of Civil Engineering and Management 19, no. 1 (January 9, 2014): S106-S115. Accessed June 17, 2019. https://journals.vgtu.lt/index.php/JCEM/article/view/3961.