00525naa#a2200157#i#4500001001500000005001700015011001400032100004100046102000700087200005900094210013200153215001000285608002700295700003000322856001500352EN\\bibl\1685920240903000748.2##a2312-4431##a20170609b2017####ek#y0engy0150####ca##aRU1#aProblems solving. Stages and methodseJournal article1#aCheboksarycNon-state educational private institution of additional professional education "Expert-methodological centre"d2017##a5 с.##aJournal article2local#1aKryninagOl'ga Viktorovna4#anaukaru.ru