00661naa#a2200181#i#450# EN\INFRA-M\bibl\39349 20240519141703.7 2500-3305 20200911b2020####ek#y0engy0150####ca RU Formation of environmental competences of students through participation in environmental competitions Journal article Moscow INFRA-M Academic Publishing LLC. 2020 3 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Sovetova T. A. Harihonov A. Yu. naukaru.ru