Opricović, Serafim, and Gwo-Hshiung Tzeng. “A Comparative Analysis of the DEA-CCR Model and the VIKOR Method”. Yugoslav Journal of Operations Research 18, no. 2 (September 1, 2008): 187–203. Accessed May 23, 2026. https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/245.