@misc{misc,
  author = {John Lehman},
  title = {Calibration service for spectral responsivity of laser and optical-fiber power meters at wavelengths between 0.4 \&$\#$965;m and 1.8 \&$\#$965;m},
  year = {1999},
  month = {1999-12-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.250-53},
  language = {en},
}