@misc{indiciae1fffedaea407,
  title = {Pre-orbiter Investigation Final Report},
  author = {Harpe, R. W. and Schiebel, G. J. and Short, M. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680009299},
  note = {Source identifier: 19680009299}
}