1. Hurtado, F., Palop, B., Sacristán, V.: Diagramas de voronoi con funciones temporales. VIII Encuetos en Geometria Computacional (1999)
2. Abellanas, M., Hurtado, F., Sacristán, V., Palop, B.: Voronoi diagram for services neighboring a highway. IPL: Information Processing Letters 86 (2003)
3. Abellanas, M., Hurtado, F., Icking, C., Klein, R., Langetepe, E., Ma, L., Palop, B., Sacristán, V.: Proximity problems for time metrics induced by the l 1 metric and isothetic networks. In: IX Encuetros en Geometria Computacional (2001)
4. Aichholzer, O., Aurenhammer, F., Palop, B.: Quickest paths, straight skeletons, and the city voronoi diagram. In: Proceedings of the 8th SoCG, June, 5-7, 2002, pp. 151–159. ACM Press, New York (2002)
5. Lecture Notes in Computer Science;R. Klein,1989