@misc{indiciaeeb04d3024c09,
  title = {Eruptive history and geochronology of Mount Mazama and the Crater Lake region, Oregon},
  author = {Charles R. Bacon and Marvin A. Lanphere},
  year = {2006},
  doi = {10.1130/b25906.1},
  url = {https://pubs.usgs.gov/publication/70028576},
  note = {Source identifier: 70028576}
}