@misc{indiciae200da46d0283,
  title = {Large efficiency improvements in BEAMnrc using directional bremsstrahlung splitting.},
  author = {I Kawrakow and D W O Rogers and B R B Walters},
  year = {2004},
  doi = {10.1118/1.1788912},
  url = {https://pubmed.ncbi.nlm.nih.gov/15543798/},
  note = {Source identifier: 15543798}
}