Kitaeva, M.V., N.V. Speshilova, and V. N. Shepel. “Mathematical Models of Multi-Criteria Optimization of Subsystems of Higher Educational Institutions”. International Review of Management and Marketing 6, no. 5S (August 5, 2016): 249–254. Accessed February 6, 2023. https://econjournals.com/index.php/irmm/article/view/2827.