%0 Journal Article
%A Micha Sharir
%A Janos Pach
%T The Upper Envelope of Piecewise Linear Functions and the Boundary of a Region Enclosed by Convex Plates: Combinatorial Analysis.
%J Discrete & computational geometry
%D 1989
%P 291-310
%V 4
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1989__4_6_131081/
%F DCG_1989__4_6_131081