Barsukov V.N., Kalachikova O.N. The Evolution of Demographic and Social Construction of the Age of “Old Age”. Economic and Social Changes: Facts, Trends, Forecast, 2020, vol. 13, no.1, pp. 34–55. DOI: 10.15838/esc.2020.1.67.2
Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences, Institute for Demographic Research; Federal State Budgetary Institution of Science Vologda Research Center of the Russian Academy of Sciences (VolRC RAS)
