@misc{indiciae97a33ad1aac8,
  title = {Geology, geochemistry, and geochronology of the central Giants Range batholith, northeastern Minnesota},
  author = {Terrence J. Boerboom and Robert E. Zartman},
  year = {1993},
  doi = {10.1139/e93-217},
  url = {https://pubs.usgs.gov/publication/70186260},
  note = {Source identifier: 70186260}
}