%0 Journal Article %A Erdös, P. %T On Some Applications of Graph Theory to Geometry %J Canadian journal of mathematics %D 1967 %P 968-971 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-088-2/ %R 10.4153/CJM-1967-088-2 %F 10_4153_CJM_1967_088_2