@misc{indiciaeda9fdf90fed3,
  title = {Comparison of radiogenic helium and lead in zircon},
  author = {Patrick M. Hurley and E. S. Larsen and David Gottfried},
  year = {1956},
  doi = {10.1016/0016-7037(56)90060-6},
  url = {https://pubs.usgs.gov/publication/70216326},
  note = {Source identifier: 70216326}
}