@misc{indiciae4b19cf6dee01,
  title = {Photon pencil kernel parameterisation based on beam quality index.},
  author = {Tufve Nyholm and Jörgen Olofsson and Anders Ahnesjö and Mikael Karlsson},
  year = {2006},
  doi = {10.1016/j.radonc.2006.02.002},
  url = {https://pubmed.ncbi.nlm.nih.gov/16515812/},
  note = {Source identifier: 16515812}
}