@misc{1130426,
  author = {Paul J Lamperti and Michelle O'Brien},
  title = {Calibration of x-ray and gamma-ray measuring instruments:},
  year = {2001},
  month = {2001-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.250-58},
  language = {en},
}