Зырянов, Сергей Григорьевич. “WEAKNESSES OF SOCIAL STRATIFICATION AND MOBILITY IN THE CHELYABINSK REGION IN THE FIRST HALF OF THE 2010-S”. Социум и власть, vol. 50, no. 6, June 2014, pp. 21-32, https://socium-vlast.owebs.ru/article/view/28151.