@misc{indiciaeef24a50e3576,
  title = {Differentiation of pre-existing trapped methane from thermogenic methane in an igneous-intruded coal by hydrous pyrolysis},
  author = {Robert F. Dias and Michael D. Lewan and Justin E. Birdwell and Maciej J. Kotarba},
  year = {2014},
  doi = {10.1016/j.orggeochem.2013.11.010},
  url = {https://pubs.usgs.gov/publication/70068736},
  note = {Source identifier: 70068736}
}