%0 Journal Article %A V. V. Basov %T Bifurcation of the Equilibrium Point in the Critical Case of Two Pairs of Zero Characteristic Roots %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2002 %P 45-60 %V 236 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2002_236_a5/ %G ru %F TM_2002_236_a5