@misc{indiciae1738b38ab84b,
  title = {Optical interference filter for hg 1849 angstrom units.},
  author = {Baumeister, P. W. and Costich, V. R.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650036575},
  note = {Source identifier: 19650036575}
}