00511naa#a2200181#i#450# EN\INFRA-M\bibl\270 20241012111859.6 2308-4898 20130603b2013####ek#y0engy0150####ca RUS RU Descriptive geometry on computer screen Journal article Moscow INFRA-M Academic Publishing LLC. 2013 2 с. Journal article local Korotkiy Viktor Anatol'evich Khmarova Lyudmila naukaru.ru