%0 Journal Article %A D. Zagier %A J. Harer %T The Euler characteristic of the moduli space of curves. %J Inventiones mathematicae %D 1986 %P 457-486 %V 85 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1986__85_143377/ %F IM_1986__85_143377