00555naa#a2200169#i#450# EN\INFRA-M\bibl\40549 20260101015753.4 2306-1731 20210421b2021####ek#y0engy0150####ca RU Didactic Complexity Estimation of the General Physics Course Sections Journal article Moscow INFRA-M Academic Publishing LLC. 2021 6 с. Journal article local Статистика. Демография. Социология. 31 Mayer R. V. naukaru.ru