%0 Journal Article %A X. Gomez-Mont %A P. Mardešic %T Index of a Vector Field Tangent to an Odd-Dimensional Hypersurface and the Signature of the Relative Hessian %J Funkcionalʹnyj analiz i ego priloženiâ %D 1999 %P 1-13 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1999_33_1_a0/ %G ru %F FAA_1999_33_1_a0