%0 Journal Article %A B. G. Gabdulkhaev %T Optimization of projection methods for the solution of differential equations %J Differencialʹnye uravneniâ %D 1978 %P 1888-1899 %V 14 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_10_a18/ %G ru %F DE_1978_14_10_a18