@misc{indiciae1ce83904b2ff,
  title = {Gamma-ray imaging system using modulated apertures.},
  author = {A Macovski},
  year = {1974},
  doi = {10.1088/0031-9155/19/4/011},
  url = {https://pubmed.ncbi.nlm.nih.gov/4445224/},
  note = {Source identifier: 4445224}
}