Ulrik Brandes Cesim Erten J. Joseph Fowler Fabrizio Frati Markus Geyer Carsten Gutwenger Seok-Hee Hong Michael Kaufmann Stephen G. Kobourov Giuseppe Liotta Petra Mutzel Antonios Symvonis Colored Simultaneous Geometric Embeddings. 254-263 2007 conf/cocoon/2007 COCOON http://dx.doi.org/10.1007/978-3-540-73545-8_26 db/conf/cocoon/cocoon2007.html#BrandesEFFGGHKKLMS07