@misc{indiciaece6ec7b7bb3a,
  title = {Quantum spherical spin models.},
  author = {R Serral Gracià and Th M Nieuwenhuizen},
  year = {2004},
  doi = {10.1103/physreve.69.056119},
  url = {https://pubmed.ncbi.nlm.nih.gov/15244895/},
  note = {Source identifier: 15244895}
}