@misc{indiciae7b51dcb2a797,
  title = {Two-dimensional Hubbard-Holstein model.},
  author = {E Berger and P Valásek and von der Linden W},
  year = {1995},
  doi = {10.1103/physrevb.52.4806},
  url = {https://pubmed.ncbi.nlm.nih.gov/9981662/},
  note = {Source identifier: 9981662}
}