@misc{indiciaeeb4f384fafc4,
  title = {Selenium isotope ratios as indicators of selenium sources and oxyanion reduction},
  author = {T.M. Johnson and M.J. Herbel and T.D. Bullen and P.T. Zawislanski},
  year = {1999},
  doi = {10.1016/s0016-7037(99)00279-3},
  url = {https://pubs.usgs.gov/publication/70021217},
  note = {Source identifier: 70021217}
}