@misc{indiciaed2850ff3bf7d,
  title = {A field-deployable digital acoustic measurement system},
  author = {Gray, David L. and Wright, Kenneth D., II and Rowland, Wayne D.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910014765},
  note = {Source identifier: 19910014765}
}