@misc{indiciaec33f90623fcb,
  title = {Marine cobalt resources},
  author = {F.T. Manheim},
  year = {1986},
  doi = {10.1126/science.232.4750.600},
  url = {https://pubs.usgs.gov/publication/70014553},
  note = {Source identifier: 70014553}
}