@misc{indiciae56b3638b2b78,
  title = {A Holocene paleosecular variation from 14C-dated volcanic rocks in western North America},
  author = {Jonathan T. Hagstrum and Duane E. Champion},
  year = {2002},
  doi = {10.1029/2001jb000524},
  url = {https://pubs.usgs.gov/publication/70024846},
  note = {Source identifier: 70024846}
}