00568naa#a2200193#i#450# EN\INFRA-M\bibl\20731 20241021141809.1 2308-4898 20180425b2018####ek#y0engy0150####ca RUS RU Computer Method for Learning of Descriptive Geometry. Technical Task Journal article Moscow INFRA-M Academic Publishing LLC. 2018 7 с. Journal article local Математика. 51 RUS Savel'ev Yu. A. Babich E. V. zh-szf.ru