@misc{indiciae8c94d4ce8bff,
  title = {Intrathoracic tumour motion estimation from CT imaging using the 3D optical flow method.},
  author = {Thomas Guerrero and Geoffrey Zhang and Tzung-Chi Huang and Kang-Ping Lin},
  year = {2004},
  doi = {10.1088/0031-9155/49/17/022},
  url = {https://pubmed.ncbi.nlm.nih.gov/15470929/},
  note = {Source identifier: 15470929}
}