@misc{indiciae802e84938c01,
  title = {Grade and tonnage models for Coeur d'Alene-type polymetallic veins},
  author = {K. R. Long},
  year = {1998},
  doi = {10.3133/ofr98583},
  url = {https://pubs.usgs.gov/publication/ofr98583},
  note = {Source identifier: ofr98583}
}