@misc{indiciae3c138e188090,
  title = {A direct quantitative fluorimetric method for the determination of small amounts of uranium in the field and laboratory},
  author = {Frank Grimaldi and F. N. Ward and Ruth Kreher},
  year = {1949},
  doi = {10.3133/tei98},
  url = {https://pubs.usgs.gov/publication/tei98},
  note = {Source identifier: tei98}
}