@misc{indiciae7e161f630f75,
  title = {Hidden gravity in open-string field theory.},
  author = {W Siegel},
  year = {1994},
  doi = {10.1103/physrevd.49.4144},
  url = {https://pubmed.ncbi.nlm.nih.gov/10017420/},
  note = {Source identifier: 10017420}
}