%0 Journal Article %A Gibney, Angela %A Keel, Sean %A Morrison, Ian %T Towards the ample cone of \overline{𝑀}_{𝑔,𝑛} %J Journal of the American Mathematical Society %D 2002 %P 273-294 %V 15 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-01-00384-8/ %R 10.1090/S0894-0347-01-00384-8 %F 10_1090_S0894_0347_01_00384_8