%0 Journal Article
%A D. N. Kachevsky
%T First integrals of a system of differential equations
%J Differencialʹnye uravneniâ
%D 1984
%P 1819-1821
%V 20
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_10_a23/
%G ru
%F DE_1984_20_10_a23