@misc{indiciaef2d63bebcd93,
  title = {A cockpit-display concept for executing a multiple glide-slope approach for wake-vortex avoidance},
  author = {Abbott, T. S.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19850008560},
  note = {Source identifier: 19850008560}
}