@misc{indiciae77cdf614641b,
  title = {Some geologic and potential resource aspects of rutile in porphyry copper deposits},
  author = {G.K. Czamanske and E. R. Force and W. J. Moore},
  year = {1981},
  doi = {10.2113/gsecongeo.76.8.2240},
  url = {https://pubs.usgs.gov/publication/70011771},
  note = {Source identifier: 70011771}
}