@misc{indiciaeecb0597be6bb,
  title = {Shorter contributions to isotope research},
  author = {Zell E. Peterman and D.C. Schnabel},
  year = {1986},
  doi = {10.3133/b1622},
  url = {https://pubs.usgs.gov/publication/b1622},
  note = {Source identifier: b1622}
}