TY - JOUR AU - V. K. Dzyadyk AU - L. A. Ostrovetskii TI - A~polynomial approximation method for the solution of a~boundary value problem and its derivatives for linear ordinary differential equations JO - Izvestiya. Mathematics PY - 1989 SP - 391 EP - 402 VL - 33 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1989_33_2_a8/ LA - en ID - IM2_1989_33_2_a8 ER -