@misc{indiciae13ca29f06480,
  title = {Spin gap in a generalized one-dimensional t-J model.},
  author = {M Ogata and MU Luchini and TM Rice},
  year = {1991},
  doi = {10.1103/physrevb.44.12083},
  url = {https://pubmed.ncbi.nlm.nih.gov/9999359/},
  note = {Source identifier: 9999359}
}