%0 Journal Article %A A. P. Katchalov %T Some equations for the problem of diffraction by a convex shell %J Zapiski Nauchnykh Seminarov POMI %D 1976 %P 124-125 %V 62 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a9/ %G ru %F ZNSL_1976_62_a9