%0 Journal Article %A A. N. Naimov %T Estimating Derivatives of Solutions for a Family of Singularly Perturbed Boundary Value Problems %J Differencialʹnye uravneniâ %D 2002 %P 994 %V 38 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2002_38_7_a21/ %G ru %F DE_2002_38_7_a21