@misc{indiciaeff61ab427342,
  title = {Geology of the Biwabik Iron Formation and Duluth Complex},
  author = {M.A. Jirsa and J.D. Miller and G. B. Morey},
  year = {2008},
  doi = {10.1016/j.yrtph.2007.09.009},
  url = {https://pubs.usgs.gov/publication/70033444},
  note = {Source identifier: 70033444}
}