@misc{indiciaef74ee85e3f05,
  title = {One loop multiphoton helicity amplitudes.},
  author = {G Mahlon},
  year = {1994},
  doi = {10.1103/physrevd.49.2197},
  url = {https://pubmed.ncbi.nlm.nih.gov/10017208/},
  note = {Source identifier: 10017208}
}