@misc{indiciae799b7a711264,
  title = {Sonic-Pump Levitator},
  author = {Dunn, S. A. and Pomplun, A. R. and Ethridge, E. C. and Johnson, J. L.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19830000462},
  note = {Source identifier: 19830000462}
}