@misc{indiciae74b6555f54e9,
  title = {String theories and Hirota's bilinear difference equation.},
  author = {S Saito},
  year = {1987},
  doi = {10.1103/physrevlett.59.1798},
  url = {https://pubmed.ncbi.nlm.nih.gov/10035334/},
  note = {Source identifier: 10035334}
}