@misc{indiciae3e29b5d8498f,
  title = {Late Devonian history of Michigan basin},
  author = {R.C. Gutschick and Charles Sandberg},
  year = {1991},
  doi = {10.1130/spe256-p181},
  url = {https://pubs.usgs.gov/publication/70206856},
  note = {Source identifier: 70206856}
}