Anić, Ivan, Stefan Koprivica, and Vule Aleksić. “Application of Electre Methods of Multi Criteria Decision Making in Systems With Missing Data”. Operations Research and Engineering Letters 1, no. 1 (March 22, 2022): 24–28. Accessed April 19, 2024. http://orel.unionnikolatesla.edu.rs/index.php/orel/article/view/5.