@misc{indiciae154f5186ad3d,
  title = {The open-source neutral-mass spectrometer on Atmosphere Explorer-C, -D, and -E.},
  author = {Nier, A. O. and Potter, W. E. and Hickman, D. R. and Mauersberger, K.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730043826},
  note = {Source identifier: 19730043826}
}