@misc{indiciaed73ec7a7d29b,
  title = {The HPA photon protocol and proposed electron protocol.},
  author = {W G Pitchford},
  year = {1985},
  doi = {10.1016/s0167-8140(85)80113-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4081117/},
  note = {Source identifier: 4081117}
}