%0 Journal Article
%A A. G. Voronovich
%T On the limits of applicability of Kirchhoff approximation in problems of sound

%J Doklady Akademii Nauk
%D 1983
%P 830-834
%V 273
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1983_273_4_a14/
%G ru
%F DAN_1983_273_4_a14