%0 Journal Article
%A M. M. Smirnov
%T Functionally invariant solutions and the nonuniqueness of the solution of the Darboux problem for degenerate hyperbolic equations
%J Differencialʹnye uravneniâ
%D 1976
%P 937-939
%V 12
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_5_a19/
%G ru
%F DE_1976_12_5_a19