@misc{indiciaee0bf2d84500b,
  title = {Classifying Particles By Acoustic Levitation},
  author = {Barmatz, Martin B. and Stoneburner, James D.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830000157},
  note = {Source identifier: 19830000157}
}