@article{137616,
  author = {M O'brien and D Burns},
  title = {Comparison of the NIST and BIPM Standards for Air Kerma in Medium-Energy X-Rays},
  year = {2006},
  number = {111},
  month = {2006-01-01},
  publisher = {Journal of Research of the National Institute of Standards and Technology},
  language = {en},
}