@misc{indiciae0dc693448ce6,
  title = {Precambrian to modern manganese mineralization: Changes in ore type and depositional environment},
  author = {Keith Nicholson and James R. Hein and Bernhard Buhn and Somnath Dasgupta},
  year = {1996},
  doi = {10.1144/gsl.sp.1997.119.01.01},
  url = {https://pubs.usgs.gov/publication/70246337},
  note = {Source identifier: 70246337}
}