@misc{indiciae639c6c295e0d,
  title = {Undiscovered gas resources in the Alum Shale, Denmark, 2013},
  author = {Donald L. Gautier and Ronald R. Charpentier and Stephanie B. Gaswirth and Timothy R. Klett and Janet K. Pitman and Christopher J. Schenk and Marilyn E. Tennyson and Katherine J. Whidden},
  year = {2013},
  doi = {10.3133/fs20133103},
  url = {https://pubs.usgs.gov/publication/fs20133103},
  note = {Source identifier: fs20133103}
}