@Article{ 
  BaCiKrOr20a,
  author = { Bach, Annika and Cicalese, Marco and Kreutz, Leonard and Orlando, Gianluca },
  title = { The antiferromagnetic XY model on the triangular lattice: topological  singularities },
  journal = { Indiana Univ. Mat. J. },
  year = { 2022 },
  volume = { 71 },
  pages = { 2411–2475 },
  URL = { http://cvgmt.sns.it/paper/4902/ },
  note = { cvgmt preprint}
}