%0 Journal Article %A M. Ya. Mazalov %A P. V. Paramonov %T Criteria for $C^m$-approximability by bianalytic functions on planar compact sets %J Sbornik. Mathematics %D 2015 %P 242-281 %V 206 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2015_206_2_a4/ %G en %F SM_2015_206_2_a4