00488naa#a2200169#i#450# EN\INFRA-M\bibl\14175 20241219201739.4 2500-3305 20161124b2016####ek#y0engy0150####ca RUS RU «Mathematics should even be learned in order that…» Journal article Moscow INFRA-M Academic Publishing LLC. 2016 0 с. Journal article local Savvina Olga Alekseevna naukaru.ru