@misc{indiciae319620eab8c6,
  title = {Hodograph analysis in aircraft trajectory optimization},
  author = {Cliff, Eugene M. and Seywald, Hans and Bless, Robert R.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930067341},
  note = {Source identifier: 19930067341}
}