%0 Journal Article %A A. B. Vasil'eva %A M. A. Davydova %T Singularly perturbed second-order equation with small parameters multiplying the first and second derivatives %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1999 %P 1504-1512 %V 39 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_9_a6/ %G ru %F ZVMMF_1999_39_9_a6