00612naa#a2200205#i#450# EN\INFRA-M\bibl\33626 /en/manage/index 20250207132945.5 2308-4898 20191202b2019####ek#y0engy0150####ca RUS RU Imaginary Points in Cartesian Coordinate System Journal article Moscow INFRA-M Academic Publishing LLC. 2019 7 с. Journal article local Математика. 51 RUS Girsh A. G. Korotkiy Viktor Anatol'evich fht.editorum.ru /en/manage/index