00516naa#a2200169#i#450# EN\INFRA-M\bibl\35505 20240426082334.5 2308-4898 20191225b2019####ek#y0engy0150####ca RU Imaginary Straight Lines in Cartesian Coordinate System Journal article Moscow INFRA-M Academic Publishing LLC. 2019 12 с. Journal article local Математика. 51 Korotkiy Viktor Anatol'evich riorpub.com