00483naa#a2200169#i#450# EN\INFRA-M\bibl\971 20250110051652.5 1998-0744 20131225b2013####ek#y0engy0150####ca RUS RU Ways to Individualize Education by means of Electronic Textbooks Journal article Moscow INFRA-M Academic Publishing LLC. 2013 3 с. Journal article local Artemova L. zh-szf.ru