%0 Journal Article %A S. E. Zhelezovsky %A V. Ph. Kirichenko %A V. A. Krys'ko %T Rate of convergence of the Bubnov--Galerkin method for a nonclassical system of differential equations %J Differencialʹnye uravneniâ %D 1987 %P 1407-1416 %V 23 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_8_a14/ %G ru %F DE_1987_23_8_a14