%0 Journal Article %A I. P. Gavriljuk %A V. M. Luzhnyh %A V. L. Makarov %T Exact and truncated difference schemes for boundary value problems with degeneration %J Differencialʹnye uravneniâ %D 1985 %P 285-295 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_2_a12/ %G ru %F DE_1985_21_2_a12