@misc{indiciae025347a31ff4,
  title = {Selection of coplanar or noncoplanar beams using three-dimensional optimization based on maximum beam separation and minimized nontarget irradiation.},
  author = {S K Das and L B Marks},
  year = {1997},
  doi = {10.1016/s0360-3016(97)89489-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/9231691/},
  note = {Source identifier: 9231691}
}