@misc{indiciaee20dacc47131,
  title = {Uranium analysis of single drops of natural waters using the fission-track technique},
  author = {G. Michael Reimer},
  year = {1976},
  doi = {10.3133/ofr76239},
  url = {https://pubs.usgs.gov/publication/ofr76239},
  note = {Source identifier: ofr76239}
}