@misc{1195011,
  author = {E H Eisenhower and E H Eisenhower},
  title = {Criteria for the operation of Federall-owned secondary calibration laboratories (ionizing radiation):},
  year = {1991},
  month = {1991-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.812},
  language = {en},
}