%0 Journal Article
%A N. Ya. Kirpichnikova
%T Equations for a~wave front, rays, and a~phase function near a~regular region of the caustic formed by space-time rays
%J Zapiski Nauchnykh Seminarov POMI
%D 1992
%P 92-100
%V 203
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1992_203_a7/
%G ru
%F ZNSL_1992_203_a7