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    • Queen Labelings 

      Bloom, Gary; Lampis, Michael; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2008)
      Open Access
      We introduce and investigate the concept of Queen labeling a digraph and its connection to the well-known n-queens problem. In the general case we obtain an upper bound on the size of a queen graph and show that it is ...