@misc{indiciae28eebf1e19de,
  title = {Magnetic susceptibility and triangular exchange coupling in the tourmaline mineral group},
  author = {T. Tsang and A. N. Thorpe and G. Donnay and Frank E. Senftle},
  year = {1971},
  doi = {10.1016/s0022-3697(71)80039-2},
  url = {https://pubs.usgs.gov/publication/70227467},
  note = {Source identifier: 70227467}
}