Marios Mavronicolas Burkhard Monien Vicky G. Papadopoulou Florian Schoppmann Voronoi Games on Cycle Graphs. 503-514 2008 MFCS http://dx.doi.org/10.1007/978-3-540-85238-4_41 conf/mfcs/2008 db/conf/mfcs/mfcs2008.html#MavronicolasMPS08