@article{GDZPPN000364029, title = {Disjoint Edges in Geometric Graphs.}, journal = {Discrete \& computational geometry}, volume = {4}, year = {1989}, pages = {287-290}, zbl = {0692.05037}, url = {http://dml.mathdoc.fr/item/GDZPPN000364029} }
Erdös, P.; Alon, N. Disjoint Edges in Geometric Graphs.. Discrete & computational geometry, Tome 4 (1989) pp. 287-290. http://gdmltest.u-ga.fr/item/GDZPPN000364029/