@misc{indiciae0dd1942fec28,
  title = {Unambiguous fermionic-string amplitudes.},
  author = {H La and P Nelson},
  year = {1989},
  doi = {10.1103/physrevlett.63.24},
  url = {https://pubmed.ncbi.nlm.nih.gov/10040423/},
  note = {Source identifier: 10040423}
}