@misc{indiciae5b75e6e83768,
  title = {An indexing and classification system for earth-science data bases},
  author = {J.C. Schornick and J. B. Pruitt and H.E. Stranathan and A.C. Duncan},
  year = {1989},
  doi = {10.3133/ofr8947},
  url = {https://pubs.usgs.gov/publication/ofr8947},
  note = {Source identifier: ofr8947}
}