%0 Journal Article
%A A. V. Zhiber
%A Yu. G. Mikhailova
%T On hyperbolic systems of equations with zero generalized Laplace invariants
%J Trudy Instituta matematiki i mehaniki
%D 2007
%P 74-83
%V 13
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2007_13_4_a6/
%G ru
%F TIMM_2007_13_4_a6