@misc{indiciaedb4332fc2d20,
  title = {Rock pushing and sampling under rocks on Mars},
  author = {H. J. Moore and S. Liebes and D.S. Crouch and L.V. Clark},
  year = {1978},
  doi = {10.3133/pp1081},
  url = {https://pubs.usgs.gov/publication/pp1081},
  note = {Source identifier: pp1081}
}