@misc{indiciae2192f7be14b3,
  title = {Obsidian hydration dating applied to basaltic volcanic activity},
  author = {M. W. Higgins and A. C. Waters and I. Friedman and N.V. Peterson and E.A. Groh},
  year = {1972},
  doi = {10.1126/science.176.4040.1259.b},
  url = {https://pubs.usgs.gov/publication/70010250},
  note = {Source identifier: 70010250}
}