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      Covering point sets with two disjoint disks or squares  [Article]

      Cabello, Sergio; Díaz Báñez, José Miguel; Seara Ojea, Carlos; Sellarés, J. Antoni; Urrutia, Jorge; Ventura Molina, Inmaculada (Elsevier, 2007)
      We study the following problem: Given a set of red points and a set of blue points on the plane, find two unit disks CR and CB with disjoint interiors such that the number of red points covered by CR plus the number of ...