@misc{indiciaecea5f07c01c7,
  title = {Scheelite deposits in the northern part of the Sierra de Juarez, Northern Territory, Lower California, Mexico},
  author = {Carl Fries and Eduardo Schmitter},
  year = {1945},
  doi = {10.3133/b946c},
  url = {https://pubs.usgs.gov/publication/b946C},
  note = {Source identifier: b946C}
}