@misc{indiciaea547a0c6b740,
  title = {Deorbit maneuver and targeting strategy for unmanned Mars landers.},
  author = {Marquet, D. and Pragluski, W. J.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680056780},
  note = {Source identifier: 19680056780}
}