00641naa#a2200169#i#450# EN\INFRA-M\bibl\45282 20240707034124.7 1998-1740 20211029b2021####ek#y0engy0150####ca RU Method for Assessing the Complexity of Mathematical Reasoning in Educational Texts (on the Example of a Physics Textbook) Journal article Moscow INFRA-M Academic Publishing LLC. 2021 5 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Mayer R. V. zh-szf.ru