@misc{indiciae2102d7caf12e,
  title = {Research and development for Onboard Navigation (ONAV) ground based expert/trainer system: ONAV entry expert system code},
  author = {Bochsler, Daniel C.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19910003407},
  note = {Source identifier: 19910003407}
}