@misc{1197121,
  author = {John S Pruitt},
  title = {Absorbed-dose calibration of ionization chambers in a ⁶⁰Co gamma-ray beam:},
  year = {1990},
  month = {1990-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.250-40},
  language = {en},
}