%0 Journal Article
%A M. N. Popa
%A K. S. Sibirskii
%T Affine classification of a system with quadratic nonlinearities and not single valued canonical form
%J Differencialʹnye uravneniâ
%D 1978
%P 1028-1033
%V 14
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_6_a6/
%G ru
%F DE_1978_14_6_a6