@misc{indiciae546fe6c97a9b,
  title = {X-Ray And Acoustic Measurements Yield Stiffnesses},
  author = {Madaras, Eric Irvine and Kline, Ronald A.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930000003},
  note = {Source identifier: 19930000003}
}