TY - JOUR AU - W. Balser TI - Summability of Formal Power-Series Solutions of Partial Differential Equations with Constant Coefficients JO - Contemporary Mathematics. Fundamental Directions PY - 2003 SP - 5 EP - 17 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMFD_2003_1_a0/ LA - ru ID - CMFD_2003_1_a0 ER -