%0 Journal Article %A Chvátal, Vašek %T A De Bruijn-Erdős theorem for $1$-$2$ metric spaces %J Czechoslovak Mathematical Journal %D 2014 %P 45-51 %V 64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-014-0081-1/ %R 10.1007/s10587-014-0081-1 %G en %F 10_1007_s10587_014_0081_1