00607naa#a2200181#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200007800109210005100187215001000238608002700248675010500275700003000380856001500410EN\INFRA-M\bibl\1661220240805004941.1##a2500-0489##a20170914b2017####ek#y0engy0150####ca0#aRUS##aRU1#aOptimization problems in school textbooks on mathematicseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2017##a7 с.##aJournal article2local##aОбщие вопросы математических и естественных наук. 50zRUS#1aMusingNail' Minbarievich4#anaukaru.ru