A. ALEKSEENOK and S. YAKOVLEVA, “THE MIDDLE CLASS AS A FACTOR OF SOCIAL SECURITY OF MODERN RUSSIAN SOCIETY”, Среднерусский вестник общественных наук, vol. 13, no. 4, pp. 36–47, Apr. 2018, doi: 10.22394/2071-2367-2018-13-4-36-47.