@misc{indiciaeeb47f8646634,
  title = {Terrain-Adaptive Navigation Architecture},
  author = {Helmick, Daniel M. and Angelova, Anelia and Matthies, Larry H.},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20080047216},
  note = {Source identifier: 20080047216}
}