@misc{indiciae6c10caecc564,
  title = {Single-Axis Acoustic Levitator With Rotation Control},
  author = {Trinh, E. H. and Olli, E. E.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870000498},
  note = {Source identifier: 19870000498}
}