%0 Journal Article
%A E. P. Volokitin
%A S. A. Treskov
%T A variant of the bifurcation of a fourfold equilibrium state with two zero eigenvalues
%J Matematičeskie trudy
%D 1987
%P 60-66
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_1987_9_a5/
%G ru
%F MT_1987_9_a5