%0 Journal Article %A I. Y. Bylyi %T The Field of Nonregular Short Wave scattered by a~Smooth Convex Object in Penumbra %J Zapiski Nauchnykh Seminarov POMI %D 1981 %P 13-26 %V 117 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1981_117_a1/ %G ru %F ZNSL_1981_117_a1