@misc{indiciaea46ee5d3e8c0,
  title = {Unmatched projector/backprojector pairs in an iterative reconstruction algorithm.},
  author = {G L Zeng and G T Gullberg},
  year = {2000},
  doi = {10.1109/42.870265},
  url = {https://pubmed.ncbi.nlm.nih.gov/11021698/},
  note = {Source identifier: 11021698}
}