%0 Journal Article
%A I. G. Rozet
%A V. V. Filinych
%T Bifurcations and perturbations of an integral ``torus-sphere'' manifold
%J Differencialʹnye uravneniâ
%D 1990
%P 721-723
%V 26
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1990_26_4_a25/
%G ru
%F DE_1990_26_4_a25