@misc{indiciae538c02497fae,
  title = {Planetary benchmarks},
  author = {Uphoff, C. and Staehle, R. and Kobrick, M. and Jurgens, R. and Price, H. and Slade, M. and Sonnabend, D.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790007709},
  note = {Source identifier: 19790007709}
}