@misc{indiciae8bf2c1546f93,
  title = {High-Fidelity Piezoelectric Audio Device},
  author = {Woodward, Stanley E. and Fox, Robert L. and Bryant, Robert G.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20110024121},
  note = {Source identifier: 20110024121}
}