%0 Journal Article
%A V. V. Petrov
%A A. A. Gordeev
%T Investigation of high-order nonlinear systems on a multisheet phase plane
%J Doklady Akademii Nauk
%D 1976
%P 59-61
%V 228
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_228_1_a13/
%G ru
%F DAN_1976_228_1_a13