@misc{indiciae52cc92fb61b6,
  title = {The source of Witwatersrand gold: Evidence from uraninite chemistry},
  author = {Hartwig E. Frimmel and Poul Emsbo and Alan E. Koenig},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70158626},
  note = {Source identifier: 70158626}
}