Григорьева, Наталья Николаевна, and Татьяна Николаевна Черняева. 2023. “Аpplication of Assortment Analysis Methods in Order to Improve Procurement Activities in the Struc-Tural Divisions of the Holding JSC «Russian Railways»”. Modern Technologies. System Analysis. Modeling, no. 1(77) (April):60-72. http://ojs.irgups.ru/index.php/stsam/article/view/1051.