@misc{indiciae3c2d2768069d,
  title = {Karst in evaporite rocks of the United States},
  author = {Kenneth S. Johnson},
  year = {2002},
  doi = {10.1007/bf03176473},
  url = {https://pubs.usgs.gov/publication/70023814},
  note = {Source identifier: 70023814}
}