%0 Journal Article %A Yu. P. Boglaev %T An iterative method for the approximate solution of singularly perturbed problems %J Doklady Akademii Nauk %D 1976 %P 1033-1036 %V 227 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_227_5_a0/ %G ru %F DAN_1976_227_5_a0