00534naa#a2200169#i#450# EN\INFRA-M\bibl\10838 20240419115345.5 2308-4898 20160317b2016####ek#y0engy0150####ca RUS RU Open All-Russian Olympiad on Descriptive Geometry, Engineering and Computer Graphics 2015 Journal article Moscow INFRA-M Academic Publishing LLC. 2016 16 с. Journal article local Vyshnyepolskiy Vladimir Igorevich riorpub.com