@misc{indiciae3fb17eda65f1,
  title = {U-Th-Pb measurements of Luna 20 soil},
  author = {M. Tatsumoto},
  year = {1973},
  doi = {10.1016/0016-7037(73)90202-0},
  url = {https://pubs.usgs.gov/publication/70010125},
  note = {Source identifier: 70010125}
}