@misc{indiciae3fda218dab9e,
  title = {Mossbauer vibration calibration systems evaluated},
  author = {Hobbs, J. V. and Netusil, W. F.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000125},
  note = {Source identifier: 19690000125}
}