@misc{indiciaef2c6edd0fa6a,
  title = {Radium-uranium equilibrium and radium-uranium ages of some Colorado Plateau secondary minerals},
  author = {T. W. Stern and Lorin Rollins Stieff},
  year = {1956},
  doi = {10.3133/tei482},
  url = {https://pubs.usgs.gov/publication/tei482},
  note = {Source identifier: tei482}
}