%0 Journal Article %A Gulgowski, Jacek %T Bernstein approximations of Dirichlet problems for elliptic operators on the plane %J Electronic journal of differential equations %D 2007 %V 2007 %U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a152/ %G en %F EJDE_2007__2007__a152