@misc{indiciae1b2a3a180192,
  title = {A study of altitude and flight path angle dynamics for a singularly perturbed fuel optimization problem},
  author = {Price, D. B. and Gracey, C.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19840042720},
  note = {Source identifier: 19840042720}
}