%0 Journal Article %A John Lott %A Cedric Villani %T Ricci curvature for metric-measure spaces via optimal transport %J Annals of mathematics %D 2009 %P 903-991 %V 169 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.169.903/ %R 10.4007/annals.2009.169.903 %G en %F 10_4007_annals_2009_169_903