Item from Mathematical Reviews (American Mathematical Society)--access
their stable url through the AMS database via an institutional library:
MR1447246 (98b:05034) Edelsbrunner, Herbert; Waupotitsch, Roman A
combinatorial approach to cartograms. 11th ACM Symposium on
Computational Geometry (Vancouver, BC, 1995). Comput. Geom. 7 (1997),
no. 5-6, 343--360. (Reviewer: Sandra L. Arlinghaus) 05B99