%0 Journal Article
%A H. Edelsbrunner
%T The Upper Envelope of Piecewise Linear Functions: Tight Bounds on the Number of Faces.
%J Discrete & computational geometry
%D 1989
%P 337-344
%V 4
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1989__4_6_131083/
%F DCG_1989__4_6_131083