@misc{1163031,
  author = {Kenneth L Eckerle and Jr Venable},
  title = {Standard Reference Materials ::Didymium glass filters for calibrating the wavelength scale of spectrophotometers - SRM 2009, 2010, 2013, and 2014/},
  year = {1979},
  month = {1979-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.260-66},
  language = {en},
}