@misc{indiciaef7a7c484ccbf,
  title = {Mechanical system diagnostics using vibration testing techniques},
  author = {Mcleod, Catherine D. and Raju, P. K. and Crocker, M. J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19920063288},
  note = {Source identifier: 19920063288}
}