@misc{indiciae6e335b6c08de,
  title = {Isotopic evidence for organic matter oxidation by manganese reduction in the formation of stratiform manganese carbonate ore},
  author = {P.M. Okita and J.B. Maynard and E.C. Spiker and E. R. Force},
  year = {1988},
  doi = {10.1016/0016-7037(88)90036-1},
  url = {https://pubs.usgs.gov/publication/70014385},
  note = {Source identifier: 70014385}
}