@misc{indiciae844f7f051185,
  title = {Superimposition, symbology, visual attention, and the head-up display},
  author = {Martin-Emerson, R. and Wickens, C. D.},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/20040121943},
  note = {Source identifier: 20040121943}
}