@misc{indiciae056d15bf22bd,
  title = {Significance of tourmaline-rich rocks in the North Range group of the Cuyuna iron range, east-central Minnesota},
  author = {J.M. Cleland and G. B. Morey and P.L. McSwiggen},
  year = {1996},
  doi = {10.2113/gsecongeo.91.7.1282},
  url = {https://pubs.usgs.gov/publication/70018052},
  note = {Source identifier: 70018052}
}