@misc{1163256,
  author = {J F Martin},
  title = {Standard Reference Materials ::National Bureau of Standards - U. S. Steel Corporation joint program for determining oxygen and nitrogen in steel/},
  year = {1971},
  month = {1971-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-26},
  language = {en},
}