@article{10_4007_annals_2009_169_903,
     author = {John Lott and Cedric Villani},
     title = {Ricci curvature for metric-measure spaces via optimal transport},
     journal = {Annals of mathematics},
     pages = {903--991},
     publisher = {mathdoc},
     volume = {169},
     number = {3},
     year = {2009},
     doi = {10.4007/annals.2009.169.903},
     mrnumber = {2480619},
     zbl = {1178.53038},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.169.903/}
}