@misc{1188506,
  author = {M L Greenough and H K Hammond},
  title = {Preparation and calibration of phosphor standards:},
  year = {1974},
  month = {1974-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.74-553},
  language = {en},
}