@misc{indiciae697c70f734ec,
  title = {Copper, vanadium, and uranium deposits in sandstone-their distribution and geochemical cycles},
  author = {R. P. Fischer and J. H. Stewart},
  year = {1961},
  doi = {10.2113/gsecongeo.56.3.509},
  url = {https://pubs.usgs.gov/publication/70220606},
  note = {Source identifier: 70220606}
}