@article{Azcoiti:57809,
      author        = "Azcoiti, V. and Cortese, G. and Follana, E. and Giordano,
                       M.",
      title         = "{A geometric Monte Carlo algorithm for the
                       antiferromagnetic Ising model with "topological" term at
                       Theta=Pi}",
      year          = "2014",
}