@misc{indiciae6de3f603d615,
  title = {The Lasky cumulative tonnage-grade relationship; a reexamination},
  author = {J. H. DeYoung},
  year = {1981},
  doi = {10.2113/gsecongeo.76.5.1067},
  url = {https://pubs.usgs.gov/publication/70011787},
  note = {Source identifier: 70011787}
}