00467naa#a2200169#i#450# EN\INFRA-M\bibl\14085 20250120221014.1 2308-4898 20161219b2016####ek#y0engy0150####ca RUS RU Geometric Simulation and Descriptive Geometry Journal article Moscow INFRA-M Academic Publishing LLC. 2016 9 с. Journal article local Sal'kov N. A. zh-szf.ru