TY JOUR TI Formation of Ethnocultural Identity with Application of Principles of Co-Studying of the Russian (Native) Language and Culture KW ethnocultural identity KW Russian (native) language KW cultural principle KW linguocultural principle KW educational and cognitive activity JO Standards and Monitoring in Education AU Trunceva, T.N. PY 2020 IS 8 PB INFRA-M Academic Publishing LLC.