Иванов, Андрей Викторович, and Регина Игоревна Кантор. “EVALUATION OF THE EFFICIENCY OF OPERATION AND DEVELOPMENT OF REGION BASED ON DATA FROM A SET OF REGIONAL ENTERPRISES”. Социум и власть, vol. 36, no. 4, Apr. 2012, pp. 87-93, https://socium-vlast.owebs.ru/article/view/27823.