@misc{indiciaee7f174ca394b,
  title = {Position Estimation Using Image Derivative},
  author = {Mortari, Daniele and deDilectis, Francesco and Zanetti, Renato},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20150000508},
  note = {Source identifier: 20150000508}
}