%0 Journal Article %A N. Alon %A D. J. Kleitman %T A purely combinatorial proof of the Hadwiger Debrunner \((p,q)\) conjecture %J The electronic journal of combinatorics %D 1997 %V 4 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/1316/ %R 10.37236/1316 %F 10_37236_1316