TY - JOUR AU - L. R. Volevich TI - Regularity of solutions of systems of differential equations with variable coefficients JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1961 VL - 16 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1961_16_2_a18/ LA - ru ID - RM_1961_16_2_a18 ER -