%0 Journal Article %A A. A. Danilov %A V. I. Ivanov %T Corrections to Fok asymptotics for a diffraction field near a surface of nonconstant curvature %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1980 %P 979-992 %V 20 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1980_20_4_a14/ %G ru %F ZVMMF_1980_20_4_a14