@misc{indiciae86b167389ffd,
  title = {Pyroclastic deposits as sites for lunar bases},
  author = {Hawke, B. Ray and Clark, Beth and Coombs, C. R.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910042958},
  note = {Source identifier: 19910042958}
}