%0 Journal Article
%A L. M. Lerman
%A L. P. Shilnikov
%T On the classification of structurally stable nonautonomous systems of second order with a finite number of cells
%J Doklady Akademii Nauk
%D 1973
%P 544-547
%V 209
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_209_3_a6/
%G ru
%F DAN_1973_209_3_a6