4:00 – 5:20 Session 10Session 10 – Chair: Marc J. van KreveldTopics ByB. Bach, A. Spritzer, E. Lutton, and J.-D. FeketeA. SukNivasch, J. Pach, and G. TardosG.L. Castelli Aleardi, O. Devillers, and É. Fusy