@misc{indiciae04dda2b53b85,
  title = {Obsidian hydration dating applied to dating of basaltic volcanic activity},
  author = {I. Friedman and N. Peterson},
  year = {1971},
  doi = {10.1126/science.172.3987.1028},
  url = {https://pubs.usgs.gov/publication/70010333},
  note = {Source identifier: 70010333}
}