%0 Journal Article
%A Yu. A. Chirkunov
%T Group classification of systems of first-order linear differential
%J Doklady Akademii Nauk
%D 1990
%P 155-159
%V 314
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a37/
%G ru
%F DAN_1990_314_1_a37