@misc{indiciaeb9d2a3682628,
  title = {Carbon isotope fractionation of sapropelic organic matter during early diagenesis},
  author = {Elliott C. Spiker and Patrick G. Hatcher},
  year = {1984},
  doi = {10.1016/0146-6380(84)90016-0},
  url = {https://pubs.usgs.gov/publication/70014005},
  note = {Source identifier: 70014005}
}