@misc{indiciae17415578063c,
  title = {Titaniferous sedimentary rocks in the Cuyuna district, central Minnesot},
  author = {R. G. Schmidt},
  year = {1958},
  doi = {10.2113/gsecongeo.53.6.708},
  url = {https://pubs.usgs.gov/publication/70211904},
  note = {Source identifier: 70211904}
}