%0 Journal Article
%A K. G. Gadylshin
%A M. I. Protasov
%T Calculation of exact frequency-dependent rays when the solution of the Helmholtz equation is known
%J Numerical methods and programming
%D 2015
%P 586-594
%V 16
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMP_2015_16_4_a12/
%G ru
%F VMP_2015_16_4_a12