@misc{indiciaeb3a9abc9ed7d,
  title = {Process recognition in multi-element soil and stream-sediment geochemical data},
  author = {E.C. Grunsky and L. J. Drew and D. M. Sutphin},
  year = {2009},
  doi = {10.1016/j.apgeochem.2009.04.024},
  url = {https://pubs.usgs.gov/publication/70036918},
  note = {Source identifier: 70036918}
}