%0 Journal Article %A A. M. Raigorodskii %T The Erdős–Hadwiger problem and the chromatic numbers of finite geometric graphs %J Sbornik. Mathematics %D 2005 %P 115-146 %V 196 %N 1 %U http://geodesic.mathdoc.fr/item/SM_2005_196_1_a4/ %G en %F SM_2005_196_1_a4