@misc{indiciae7932e8550e40,
  title = {Advanced ATC: An aircraft perspective},
  author = {Credeur, Leonard and Williams, David H. and Howell, William E. and Spitzer, Cary R.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870012460},
  note = {Source identifier: 19870012460}
}