%0 Journal Article %A K. Yu. Fedorovskiy %T On $\mathcal C^m$-approximability of functions by polynomial solutions of elliptic equations on compact plane sets %J Algebra i analiz %D 2012 %P 201-219 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2012_24_4_a8/ %G ru %F AA_2012_24_4_a8