@article{DCG_1989__4_6_131080,
     author = {P. Erd\"os and N. Alon},
     title = {Disjoint {Edges} in {Geometric} {Graphs.}},
     journal = {Discrete & computational geometry},
     pages = {287--290},
     publisher = {mathdoc},
     volume = {4},
     number = {6},
     year = {1989},
     zbl = {0692.05037},
     url = {http://geodesic.mathdoc.fr/item/DCG_1989__4_6_131080/}
}