@misc{indiciaeb204d6294987,
  title = {A comment concerning the applicability of the “open system” model to dating of fossil bones from San Joaquin soil, California},
  author = {Barney J. Szabo},
  year = {1971},
  doi = {10.1016/0012-821x(71)90014-8},
  url = {https://pubs.usgs.gov/publication/70227331},
  note = {Source identifier: 70227331}
}