@misc{1163046,
  author = {Lawrence A Machlan and John Mandel and Robert C Paule and John W Gramlich and Rance A Velapoldi},
  title = {Standard Reference Materials:A reference method for the determination of potassium in serum},
  year = {1979},
  month = {1979-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-63},
  language = {en},
}