Аксёнов, Алексей Александрович, and Екатерина Валерьевна Жирнова. “THE OPTIMIZATION OF STAFF’S MOTIVATION SYSTEM IN THE CONTEXT OF KEY PERFOMANCE INDICATORS (KPI) AND GRADING PRACTICE”. State and Municipal Management. Scholar Notes, vol. 1, no. 3, Mar. 2016, pp. 246-9, https://gmu.owebs.ru/article/view/25653.