00556naa#a2200193#i#4500001002100000003001700021005001700038011001400055100004100069101000800110102000700118200007200125210005100197215001000248608002700258700001800285700002100303856003800324EN\INFRA-M\bibl\6182/en/manage/index20250421110910.1##a1998-0728##a20150617b2015####ek#y0engy0150####ca0#aRUS##aRU1#aIntellectual Marathon for Primary School GraduateseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2015##a5 с.##aJournal article2local#1aPetlenkogL. #1aRomanovagV. Yu.4#afht.editorum.ruu/en/manage/index