@misc{indiciae8ecd6e3d9d04,
  title = {Relation of nickel concentrations in tree rings to groundwater contamination},
  author = {Thomas M. Yanosky and Don A. Vroblesky},
  year = {2010},
  doi = {10.1029/92wr00731},
  url = {https://pubs.usgs.gov/publication/70185483},
  note = {Source identifier: 70185483}
}