@misc{indiciaef3a0cdde22e2,
  title = {Using Digitized Handheld Space Shuttle Photography for Terrain Visualization},
  author = {Eckardt, F. D. and Wilkinson, M. J. and Lulla, K. P.},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20000040792},
  note = {Source identifier: 20000040792}
}