@misc{indiciaeac3785fe89ef,
  title = {Use of 17 O/ 16 O to trace atmospherically-deposited sulfate in surface waters: A case study in alpine watersheds in the Rocky Mountains},
  author = {C. A. Johnson and M.A. Mast and C.L. Kester},
  year = {2001},
  doi = {10.1029/2001gl012966},
  url = {https://pubs.usgs.gov/publication/70023465},
  note = {Source identifier: 70023465}
}