@misc{indiciae6ca9cf1a1e3f,
  title = {Small amplitude vibration calibration using the Mossbauer effect.},
  author = {Netusil, W. F. and Witherspoon, J. E.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680044670},
  note = {Source identifier: 19680044670}
}