%0 Journal Article
%A A. V. Shapovalov
%A I. V. Shirokov
%T Symmetry algebras of linear differential equations
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1992
%P 3-12
%V 92
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1992_92_1_a0/
%G ru
%F TMF_1992_92_1_a0