00499naa#a2200169#i#450# EN\NORMA\bibl\5258 20260404140701.6 1605-6590 20150331b2015####ek#y0engy0150####ca RUS RU New in Conflict of Laws Regulation of Obligations Arising from Unjust Enrichment Journal article Moscow Legal publishing house Norm 2015 0 с. Journal article local Shestakova Marina zh-szf.ru