@misc{indiciaeb6d5666895db,
  title = {A rapid geochemical spectrophotometric determination of tungsten with dithiol},
  author = {E. P. Welsch},
  year = {1983},
  doi = {10.1016/0039-9140(83)80203-3},
  url = {https://pubs.usgs.gov/publication/70011337},
  note = {Source identifier: 70011337}
}