00469naa#a2200169#i#450# EN\INFRA-M\bibl\4052 20241222233744.7 2308-4898 20140910b2014####ek#y0engy0150####ca RUS RU Puzzles of Descriptive Geometry Journal article Moscow INFRA-M Academic Publishing LLC. 2014 4 с. Journal article local Artsikhovskaya-Kuznetsova L. naukaru.ru