@misc{1130296,
  author = {Howard W Yoon and Charles E Gibson},
  title = {NIST measurement services ::spectral irradiance calibrations},
  year = {2011},
  month = {2011-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.250-89},
  language = {en},
}