@misc{indiciae2de8c2a20a50,
  title = {Powder pressing in a macrosonic field},
  author = {Protipopescu, A. and Dragan, O. and Ciovica, D.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740015126},
  note = {Source identifier: 19740015126}
}