@misc{indiciaef8e6ff7e9d2f,
  title = {Uranium in the Sharon Springs member of the Pierre shale in South Dakota and northeastern Nebraska},
  author = {Roy Clark Kepferle},
  year = {1956},
  doi = {10.3133/tei587},
  url = {https://pubs.usgs.gov/publication/tei587},
  note = {Source identifier: tei587}
}