TY JOUR TI Legal regulation of the institution for changing detention conditions of persons deprived of liberty at the international level KW international standards KW deprivation of liberty KW convicted person KW changes in the conditions of serving a sentence KW the penal system KW resocialization of convicts JO International penitentiary journal AU Gaykovich, S.L. PY 2020 IS 2 PB Academy of the FPS of Russia