%0 Journal Article %A Burago, Dmitri %T Hard balls gas and Alexandrov spaces of curvature bounded above %J Documenta mathematica %D 1998 %P 289-298 %V ICM Berlin 1998, Vol. II %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S8__a54/ %G en %F DOCMA_1998__S8__a54