@misc{indiciaeec018be33592,
  title = {Evaluation of procedures for prediction of unconventional gas in the presence of geologic trends},
  author = {E. D. Attanasi and T.C. Coburn},
  year = {2009},
  doi = {10.1007/s11053-009-9100-6},
  url = {https://pubs.usgs.gov/publication/70036559},
  note = {Source identifier: 70036559}
}