00623naa#a2200181#i#450# EN\INFRA-M\bibl\27944 20240424165705.3 2306-1731 20190327b2019####ek#y0engy0150####ca RUS RU Quantitative Assessment of the Complexity of the Electric and Magnetic Fields Study in Various Physics Textbooks Journal article Moscow INFRA-M Academic Publishing LLC. 2019 5 с. Journal article local Статистика. Демография. Социология. 31 RUS Mayer R. V. naukaru.ru