@misc{1163071,
  author = {A H Kahn and T Chang},
  title = {Standard Reference Materials ::Electron paramagnetic resonance intensity standard /},
  year = {1978},
  month = {1978-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-59},
  language = {en},
}