00564naa#a2200169#i#450# EN\INFRA-M\bibl\49071 20250302055244.7 2306-1731 20220714b2022####ek#y0engy0150####ca RU Components of Didactic Complexity of Mathematical Problem and Their Evaluation Journal article Moscow INFRA-M Academic Publishing LLC. 2022 5 с. Journal article local Статистика. Демография. Социология. 31 Mayer R. V. naukaru.ru