%0 Journal Article %A S. A. Nazarov %T The Eshelby theorem and the problem on optimal patch %J Algebra i analiz %D 2009 %P 155-195 %V 21 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2009_21_5_a7/ %G ru %F AA_2009_21_5_a7