@misc{indiciae79788f5b45eb,
  title = {The determination of snow avalanche frequency through tree-ring analysis and historical records at Ophir, Colorado},
  author = {Paul E. Carrara},
  year = {1979},
  doi = {10.1130/0016-7606(1979)90<773:tdosaf>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70209943},
  note = {Source identifier: 70209943}
}