@misc{1135141,
  author = {Ronald Colle},
  title = {Ampoules for radioactivity standard reference materials:},
  year = {2019},
  month = {2019-08-01 04:08:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.8254},
  language = {en},
}