%0 Journal Article %A A. N. Bautin %T On bifurcations in the splitting of a complex equilibrium state with two zero roots into simple states %J Doklady Akademii Nauk %D 1982 %P 784-787 %V 264 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_264_4_a2/ %G ru %F DAN_1982_264_4_a2