TY JOUR TI THE REVIEW OF CHANGES OF THE LEGISLATION REGULATING PROVISION OF PENSIONS IN THE RUSSIAN FEDERATION KW insurance pensions given for old-age KW retirement age KW pen- sion system KW pension reform KW insurance experience JO Socio-economic and humanitarian magazine AU Shirokikh, S.V. PY 2019 IS PB Krasnoyarsk State Agrarian University