@misc{indiciaede8970806629,
  title = {Strong factor in the SO(2,3) S matrix.},
  author = {RD Amado and DA Sparrow},
  year = {1986},
  doi = {10.1103/physrevc.34.1997},
  url = {https://pubmed.ncbi.nlm.nih.gov/9953671/},
  note = {Source identifier: 9953671}
}