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    • Non existence of almost Moore digraphs of diameter three 

      Conde Colom, Josep; Gimbert i Quintilla, Joan; Miret, Josep M. (Josep Maria); Moreno Chiral, Ramiro; Gonzàlez, J. (Electronic Journal of Combinatorics, 2008)
      Almost Moore digraphs appear in the context of the degree/diameter problem as a class of extremal directed graphs, in the sense that their order is one less than the unattainable Moore bound M(d; k) = 1 + d + + dk, where ...