@misc{indiciae1468407e4d98,
  title = {The Pearlette family ash beds in the Great Plains: Finding their identities and their roots in the Yellowstone country},
  author = {R.E. Wilcox and C. W. Naeser},
  year = {1992},
  doi = {10.1016/1040-6182(92)90003-k},
  url = {https://pubs.usgs.gov/publication/70016928},
  note = {Source identifier: 70016928}
}