@misc{indiciae31033bf10069,
  title = {U.S. Geological Survey Karst Interest Group Proceedings, Fayetteville, Arkansas, April 26-29, 2011},
  year = {2011},
  doi = {10.3133/sir20115031},
  url = {https://pubs.usgs.gov/publication/sir20115031},
  note = {Source identifier: sir20115031}
}