@misc{indiciaedd54be3f7c52,
  title = {Acoustic system for material transport},
  author = {Barmatz, M. B. and Trinh, E. H. and Wang, T. G. and Elleman, D. D. and Jacobi, N.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830024244},
  note = {Source identifier: 19830024244}
}