@misc{indiciae1a22c3a03be1,
  title = {Closed strings in open-string field theory.},
  author = {A Strominger},
  year = {1987},
  doi = {10.1103/physrevlett.58.629},
  url = {https://pubmed.ncbi.nlm.nih.gov/10034994/},
  note = {Source identifier: 10034994}
}