@misc{indiciaeabd03a7a2c62,
  title = {A 9-inch x-ray image intensifier with variable magnification.},
  author = {W Kühl and J W van Overhagen},
  year = {1965},
  url = {https://pubmed.ncbi.nlm.nih.gov/5829891/},
  note = {Source identifier: 5829891}
}