@misc{indiciaee60ad1058ede,
  title = {Extreme fractionation of 234U 238U and 230Th 234U in spring waters, sediments, and fossils at the Pomme de Terre Valley, southwestern Missouri},
  author = {Barney J. Szabo},
  year = {1982},
  doi = {10.1016/0016-7037(82)90323-4},
  url = {https://pubs.usgs.gov/publication/70011793},
  note = {Source identifier: 70011793}
}