@misc{indiciae5109502b8205,
  title = {Zooplankton fecal pellets link fossil fuel and phosphate deposits},
  author = {K.G. Porter and E. I. Robbins},
  year = {1981},
  doi = {10.1126/science.212.4497.931},
  url = {https://pubs.usgs.gov/publication/70011713},
  note = {Source identifier: 70011713}
}