%0 Journal Article %A M. Sharir %A D. Halperin %T Almost Tight Upper Bounds for the Single Cell and Zone Problems in Three Dimensions. %J Discrete & computational geometry %D 1995 %P 385-410 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DCG_1995__14_3_131410/ %F DCG_1995__14_3_131410