@article{DOCMA_1998__S9__a32,
     author = {Andrzejak, Artur and Welzl, Emo},
     title = {Halving point sets},
     journal = {Documenta mathematica},
     pages = {471--478},
     publisher = {mathdoc},
     volume = {ICM Berlin 1998, Vol. III},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a32/}
}