@misc{indiciae8deafb77cc2e,
  title = {A survey of piston coring systems used by oceanographic institutions},
  author = {J.V. Gardner},
  year = {1982},
  doi = {10.3133/ofr82487},
  url = {https://pubs.usgs.gov/publication/ofr82487},
  note = {Source identifier: ofr82487}
}