@misc{indiciae7de14b399b31,
  title = {Covariant second quantization of superstrings.},
  author = {N Ohta},
  year = {1986},
  doi = {10.1103/physrevlett.56.440},
  url = {https://pubmed.ncbi.nlm.nih.gov/10033193/},
  note = {Source identifier: 10033193}
}