%0 Journal Article %A G. G. Gusev %T Euler characteristic of the bifurcation set for a polynomial of degree 2 %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2008 %P 363-365 %V 63 %N 2 %U http://geodesic.mathdoc.fr/item/RM_2008_63_2_a7/ %G en %F RM_2008_63_2_a7