Greenberger-Horne-Zeilinger Nonlocality in Arbitrary Even Dimensions
  We generalize Greenberger-Horne-Zeilinger (GHZ) nonlocality to every even-dimensional and odd-partite system. For the purpose we employ concurrent observables that are incompatible and nevertheless have a common eigenstate. It is remarkable that a tripartite system can exhibit the genuinely high-dimensional GHZ nonlocality. 
Jinhyoung Lee, Seung-Woo Lee, and M. S. Kim