@misc{1167056,
  author = {Velma I Burns},
  title = {Interlaboratory intercomparisons of 500-watt tungsten-filament standards of luminous flux:},
  year = {1958},
  month = {1958-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.6158},
  language = {en},
}