00539naa#a2200181#i#450# EN\INFRA-M\bibl\7980 20241219010303.4 2308-4898 20151130b2015####ek#y0engy0150####ca RUS RU Lomonosov and Computer Technology in Teaching Descriptive Geometry Journal article Moscow INFRA-M Academic Publishing LLC. 2015 5 с. Journal article local Korotkiy Viktor Anatol'evich Khmarova Lyudmila naukaru.ru