%0 Journal Article %A W. Balser %T Summability of Formal Power-Series Solutions of Partial Differential Equations with Constant Coefficients %J Contemporary Mathematics. Fundamental Directions %D 2003 %P 5-17 %V 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMFD_2003_1_a0/ %G ru %F CMFD_2003_1_a0