@misc{indiciaee0e9b31fb6b4,
  title = {Variation in the terrestrial isotopic composition and atomic weight of argon},
  author = {John Karl Böhlke},
  year = {2014},
  doi = {10.1515/pac-2013-0918},
  url = {https://pubs.usgs.gov/publication/70135338},
  note = {Source identifier: 70135338}
}