Sinyagin, Y.V. (2017) “Personal and professional characteristics of the state civil service leaders with various groups of class ranks”, Gosudarstvennaya Sluzhba, 19(3), pp. 17–24. Available at: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/22418 (Accessed: 8 November 2026).