00713naa#a2200193#i#450# EN\INFRA-M\bibl\64873 20251216153608.2 2500-3305 20231231b2023####ek#y0engy0150####ca RU Ecological education of schoolchildren in the system of additional natural science education Journal article Moscow INFRA-M Academic Publishing LLC. 2023 6 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Balyuk Nanalya Alekseevna Kuprina Lidiya Efimovna Rybalova Tat'yana Valer'evna zh-szf.ru