@misc{indiciae0baf55ff82ac,
  title = {Preliminary seismic-velocity and magnetic studies of a carbonate rock-sinkhole area in Shelby County, Alabama},
  author = {C.H. Miller and J. R. Ege and J. K. Odum and J.J. Golob},
  year = {1984},
  doi = {10.3133/ofr84409},
  url = {https://pubs.usgs.gov/publication/ofr84409},
  note = {Source identifier: ofr84409}
}