@misc{indiciaea65d52b7605d,
  title = {Small mass spectrometer with extended measurement capabilities at high pressures},
  author = {Von Zahn, U. and Mauersberger, K.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790036720},
  note = {Source identifier: 19790036720}
}