00518naa#a2200181#i#450# EN\INFRA-M\bibl\277 20251220100152.6 2308-4898 20130603b2013####ek#y0engy0150####ca RUS RU System of remote education and geometrical and graphic disciplines Journal article Moscow INFRA-M Academic Publishing LLC. 2013 1 с. Journal article local Matusevich V. Sal'kov N. A. zh-szf.ru