@misc{indiciaea48e4575f2c3,
  title = {Chemical analyses of pre-Mazama silicic volcanic rocks, inclusions, and glass separates, Crater Lake, Oregon},
  author = {P. E. Bruggman and C. R. Bacon and J. S. Mee and S. T. Pribble and D. F. Siems},
  year = {1993},
  doi = {10.3133/ofr93314},
  url = {https://pubs.usgs.gov/publication/ofr93314},
  note = {Source identifier: ofr93314}
}