@misc{indiciae18de67d2457f,
  title = {Automatic testing device facilitates noise checks and electronic calibrations},
  author = {Harrold, J. L. and Weegmann, C. F.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670000467},
  note = {Source identifier: 19670000467}
}