TY - JOUR AU - Chvátal, Vašek TI - A De Bruijn-Erdős theorem for $1$-$2$ metric spaces JO - Czechoslovak Mathematical Journal PY - 2014 SP - 45 EP - 51 VL - 64 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1007/s10587-014-0081-1/ DO - 10.1007/s10587-014-0081-1 LA - en ID - 10_1007_s10587_014_0081_1 ER -