@misc{indiciae1f410230721a,
  title = {Mean-field (n,m)-cluster approximation for lattice models.},
  author = {D ben-Avraham and J Köhler},
  year = {1992},
  doi = {10.1103/physreva.45.8358},
  url = {https://pubmed.ncbi.nlm.nih.gov/9906934/},
  note = {Source identifier: 9906934}
}