@misc{indiciaee1ed109de2b7,
  title = {A generalized pencil beam algorithm for optimization of radiation therapy.},
  author = {A Gustafsson and B K Lind and A Brahme},
  year = {1994},
  doi = {10.1118/1.597302},
  url = {https://pubmed.ncbi.nlm.nih.gov/8208209/},
  note = {Source identifier: 8208209}
}