00540naa#a2200169#i#450# EN\INFRA-M\bibl\6287 20250412023529.6 1998-1740 20150617b2015####ek#y0engy0150####ca RUS RU Theoretical Basics in Training Teachers in the Context of Shift to the “Mathematics and Informatics” Subject Domain Journal article Moscow INFRA-M Academic Publishing LLC. 2015 2 с. Journal article local Dzamykhov A. zh-szf.ru