@misc{1163286,
  author = {LeRoy L Wyman and Robert E Michaelis},
  title = {Standard Reference Materials ::Preparation of NBS copper-base spectrochemical standards/},
  year = {1964},
  month = {1964-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-2},
  language = {en},
}