@misc{indiciae8ef0eb2a0d3e,
  title = {On using a pyroclastic deposit as a manned lunar base site},
  author = {Coombs, Cassandra R. and Mckay, David S. and Hawke, B. Ray and Heiken, Grant},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920001579},
  note = {Source identifier: 19920001579}
}