@misc{indiciaec91b54de805e,
  title = {A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco},
  author = {E. R. Force and W. Back and E.C. Spiker and L.P. Knauth},
  year = {1986},
  doi = {10.2113/gsecongeo.81.1.65},
  url = {https://pubs.usgs.gov/publication/70014657},
  note = {Source identifier: 70014657}
}