%0 Journal Article
%A O. A. Ivanov
%A G. R. Kudryashova
%T On the smoothness of an invariant surface of a quasihomogeneous system in the neighborhood of a simple exceptional direction
%J Differencialʹnye uravneniâ
%D 1987
%P 540-543
%V 23
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_3_a31/
%G ru
%F DE_1987_23_3_a31