00506naa#a2200169#i#450# EN\RIOR\bibl\6059 20241220072635.5 2409-5087 20150430b2015####ek#y0engy0150####ca RUS RU Features of the unification of private international law within the European Union Journal article Moscow Publishing Center RIOR 2015 7 с. Journal article local Sergeeva Olga Vyacheslavovna naukaru.ru