%0 Journal Article
%A M. B. Sevryuk
%T Invariant tori of reversible systems in the presence of additional even coordinates
%J Doklady Akademii Nauk
%D 1992
%P 421-424
%V 326
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1992_326_3_a6/
%G ru
%F DAN_1992_326_3_a6