@misc{indiciaeb6d31bd4dfea,
  title = {Yellowstone Volcano Observatory 2019 annual report},
  author = {Yellowstone Volcano Observatory},
  year = {2021},
  doi = {10.3133/cir1473},
  url = {https://pubs.usgs.gov/publication/cir1473},
  note = {Source identifier: cir1473}
}