@misc{indiciaed187f5b406d7,
  title = {Anomalous 13C enrichment in modern marine organic carbon},
  author = {M.A. Arthur and W.E. Dean and George E. Claypool},
  year = {1985},
  doi = {10.1038/315216a0},
  url = {https://pubs.usgs.gov/publication/70013087},
  note = {Source identifier: 70013087}
}