@misc{indiciae573a4214bec1,
  title = {Deep Impact Extended Mission Challenges for the Validation and Verification Test Program},
  author = {Montanez, Leticia and Holshouser, David},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20150014728},
  note = {Source identifier: 20150014728}
}