00485naa#a2200169#i#450# EN\INFRA-M\bibl\392 20251220145338.6 2308-4898 20130725b2013####ek#y0engy0150####ca RUS RU Competence approach to descriptive geometry syllabus Journal article Moscow INFRA-M Academic Publishing LLC. 2013 2 с. Journal article local Ivanov Gennadiy Sergeevich zh-szf.ru