@misc{indiciae8bee2b6155b2,
  title = {Structural underpinnings and neotectonics of the southern Illinois Basin: An overview},
  author = {Dennis R. Kolata and T.G. Hildenbrand},
  year = {1997},
  doi = {10.1785/gssrl.68.4.499},
  url = {https://pubs.usgs.gov/publication/70246541},
  note = {Source identifier: 70246541}
}