Colored Simultaneous Geometric Embeddings and Universal Pointsets.
Ulrik BrandesCesim ErtenAlejandro Estrella-BalderramaJ. Joseph FowlerFabrizio FratiMarkus GeyerCarsten GutwengerSeok-Hee HongMichael KaufmannStephen G. KobourovGiuseppe LiottaPetra MutzelAntonios SymvonisPublished in: Algorithmica (2011)