@misc{indiciaeabb73e3c92bb,
  title = {Geophysical studies to detect the Acme underground coal mine, Wyoming},
  author = {C.H. Miller},
  year = {1988},
  doi = {10.3133/b1677},
  url = {https://pubs.usgs.gov/publication/b1677},
  note = {Source identifier: b1677}
}