@misc{indiciae8e76c454bdec,
  title = {Equivalent fields and scatter integration for photon fields.},
  author = {Y Xiao and B E Bjärngard and J Reiff},
  year = {1999},
  doi = {10.1088/0031-9155/44/4/017},
  url = {https://pubmed.ncbi.nlm.nih.gov/10232814/},
  note = {Source identifier: 10232814}
}