00450naa#a2200169#i#450# EN\INFRA-M\bibl\1053 20240427145948.6 2308-4898 20131203b2013####ek#y0engy0150####ca RUS RU Art and Descriptive Geometry Journal article Moscow INFRA-M Academic Publishing LLC. 2013 4 с. Journal article local Sal'kov N. A. naukaru.ru