00463naa#a2200169#i#450# EN\INFRA-M\bibl\14086 20241218201120.3 2308-4898 20161219b2016####ek#y0engy0150####ca RUS RU Descriptive Geometry As Theory of Images Journal article Moscow INFRA-M Academic Publishing LLC. 2016 6 с. Journal article local Sal'kov N. A. naukaru.ru