@misc{indiciae2ba2b1164e9b,
  title = {Kerogen maturation and incipient graphitization of hydrocarbon source rocks in the Arkoma Basin, Oklahoma and Arkansas: A combined petrographic and Raman spectrometric study},
  author = {C. Spotl and D.W. Houseknecht and R.C. Jaques},
  year = {1998},
  doi = {10.1016/s0146-6380(98)00021-7},
  url = {https://pubs.usgs.gov/publication/70020417},
  note = {Source identifier: 70020417}
}