Литвинов, Алексей Михайлович. “MECHANISM OF THE REPRESENTATION OF THE RUSSIAN FEDERATION IN THE UPPER HOUSE OF PARLIAMENT: STAGES OF FORMATION AND CAUSES OF CHANGES”. Социум и власть, vol. 51, no. 1, Jan. 2015, pp. 61-66, https://socium-vlast.owebs.ru/article/view/28166.