@misc{indiciae494cba1d92ef,
  title = {Uranium-lead isochron age and preliminary sulfur isotope systematics of the Felder uranium deposit, south Texas},
  author = {K.R. Ludwig and Martin B. Goldhaber and Richard L. Reynolds and Kathleen R. Simmons},
  year = {1982},
  doi = {10.2113/gsecongeo.77.3.557},
  url = {https://pubs.usgs.gov/publication/70209700},
  note = {Source identifier: 70209700}
}