@article{GDZPPN000363987,
title = {A Combinatorial Result About Points and Balls in Euclidean Space.},
journal = {Discrete \& computational geometry},
volume = {4},
year = {1989},
pages = {259-262},
zbl = {0673.52009},
url = {http://dml.mathdoc.fr/item/GDZPPN000363987}
}
Bárány, I.; Schmerl, J.H.; Sidney, S.J.; Urrutia, J. A Combinatorial Result About Points and Balls in Euclidean Space.. Discrete & computational geometry, Tome 4 (1989) pp. 259-262. http://gdmltest.u-ga.fr/item/GDZPPN000363987/