%0 Journal Article %A Yu. I. Cherskii %T A normally solvable equation of smooth transition %J Doklady Akademii Nauk %D 1970 %P 57-60 %V 190 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_190_1_a14/ %G ru %F DAN_1970_190_1_a14