@misc{indiciaee18358fbad3b,
  title = {Results from returned spacecraft surfaces},
  author = {Zook, Herbert A. and Mckay, David S. and Bernhard, Ronald P.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900044991},
  note = {Source identifier: 19900044991}
}