@misc{indiciae8c37b09c44a5,
  title = {Three dimensional audio versus head down TCAS displays},
  author = {Begault, Durand R. and Pittman, Marc T.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19940028557},
  note = {Source identifier: 19940028557}
}