%0 Journal Article
%A V. I. Ryazanov
%T Convergence of characteristics, the Fourier transformation, and
%J Doklady Akademii Nauk
%D 1993
%P 150-152
%V 328
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_328_2_a5/
%G ru
%F DAN_1993_328_2_a5