%0 Journal Article
%A Yu. A. Chirkunov
%T Friedrichs systems equivalent to the systems of wave equations
%J Sibirskij žurnal industrialʹnoj matematiki
%D 2011
%P 132-142
%V 14
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SJIM_2011_14_3_a13/
%G ru
%F SJIM_2011_14_3_a13