%0 Journal Article %A I. A. Blatov %A V. V. Strygin %T Convergence of the spline collocation method on optimal grids for singularly perturbed boundary value problems %J Differencialʹnye uravneniâ %D 1988 %P 1977-1987 %V 24 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1988_24_11_a14/ %G ru %F DE_1988_24_11_a14