00445naa#a2200169#i#450# EN\INFRA-M\bibl\7975 20240522002123.3 2308-4898 20151130b2015####ek#y0engy0150####ca RUS RU Foci of Algebraic Curves Journal article Moscow INFRA-M Academic Publishing LLC. 2015 13 с. Journal article local Girsh A. G. naukaru.ru