%0 Journal Article
%A N. S. Grigor'ev
%T An estimate of a wave field in a shadow zone in the case of diffraction of spherical wave by infinitely smooth surface
%J Zapiski Nauchnykh Seminarov POMI
%D 1975
%P 93-118
%V 51
%U http://geodesic.mathdoc.fr/item/ZNSL_1975_51_a4/
%G ru
%F ZNSL_1975_51_a4