@misc{indiciae8983975eaf6f,
  title = {Ultrastable reference pulser for high-resolution spectrometers},
  author = {Brenner, R. and Lenkszus, F. R. and Sifter, L. L. and Strauss, M. G.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700000208},
  note = {Source identifier: 19700000208}
}