@misc{indiciae8426a5ca3acd,
  title = {Chromium isotopes and the fate of hexavalent chromium in the environment},
  author = {Andre S. Ellis and Thomas M. Johnson and Thomas D. Bullen},
  year = {2002},
  doi = {10.1126/science.1068368},
  url = {https://pubs.usgs.gov/publication/70185143},
  note = {Source identifier: 70185143}
}