00552naa#a2200169#i#450# EN\INFRA-M\bibl\36999 20260710024146.5 2306-1731 20200410b2020####ek#y0engy0150####ca RU Formation of Citizenship of Cossack Youth in Modern Conditions Journal article Moscow INFRA-M Academic Publishing LLC. 2020 3 с. Journal article local Статистика. Демография. Социология. 31 Solonnikov D. V. zh-szf.ru