Safiullin MR, Abdukaeva AA, Yurkov DV. A formalized evolution of the efficiency of regional higher education systems through the prism of the relationship of inputs and outputs of flow values. Econ. Sci. [Internet]. 2019 Dec. 27 [cited 2026 Nov. 7];5(4):248-57. Available from: https://ecna.owebs.ru/article/view/23136