%0 Journal Article %A VeselĂ˝, Libor %T Chebyshev centers in hyperplanes of $c_0$ %J Czechoslovak Mathematical Journal %D 2002 %P 721-729 %V 52 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2002__52_4_a4/ %G en %F CMJ_2002__52_4_a4