@article{10_4153_CJM_1967_088_2,
     author = {Erd\"os, P.},
     title = {On {Some} {Applications} of {Graph} {Theory} to {Geometry}},
     journal = {Canadian journal of mathematics},
     pages = {968--971},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-088-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-088-2/}
}