@misc{777321,
  author = {B. Danielson},
  title = {Measurement Procedures for the Optical Beam Splitter Attenuation Device BA-1},
  year = {1977},
  month = {1977-05-01 00:05:00},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}