@misc{indiciae7a6f45db9b11,
  title = {Construction of four-dimensional strings.},
  author = {T Gannon and CS Lam},
  year = {1990},
  doi = {10.1103/physrevd.41.492},
  url = {https://pubmed.ncbi.nlm.nih.gov/10012356/},
  note = {Source identifier: 10012356}
}