@misc{indiciae8ded9c6e985a,
  title = {A computer operated mass spectrometer system},
  author = {Bridges, J. C. and Coburn, T. B. and Reynolds, W. E. and Tucker, R. B.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680002401},
  note = {Source identifier: 19680002401}
}