@misc{indiciaebefec8a55ada,
  title = {Ferromanganese crusts from Necker Ridge, Horizon Guyot and S.P. Lee Guyot: Geological considerations},
  author = {James R. Hein and Frank T. Manheim and William C. Schwab and Alice S. Davis},
  year = {1985},
  doi = {10.1016/0025-3227(85)90132-x},
  url = {https://pubs.usgs.gov/publication/70135830},
  note = {Source identifier: 70135830}
}