%0 Journal Article %A Abresch, Uwe %A Gromoll, Detlef %T On complete manifolds with nonnegative Ricci curvature %J Journal of the American Mathematical Society %D 1990 %P 355-374 %V 03 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1030656-6/ %R 10.1090/S0894-0347-1990-1030656-6 %F 10_1090_S0894_0347_1990_1030656_6