@article{GDZPPN000364479,
title = {A Combinatorial Property of Points and Ellipsoids.},
journal = {Discrete \& computational geometry},
volume = {5},
year = {1990},
pages = {375-382},
zbl = {0697.52005},
url = {http://dml.mathdoc.fr/item/GDZPPN000364479}
}
Larman, D.G.; Bàràny, I. A Combinatorial Property of Points and Ellipsoids.. Discrete & computational geometry, Tome 5 (1990) pp. 375-382. http://gdmltest.u-ga.fr/item/GDZPPN000364479/