@misc{indiciaeb14268363723,
  title = {Regional geochemical mapping.},
  author = {J S Webb and R J Howarth},
  year = {1979},
  doi = {10.1098/rstb.1979.0092},
  url = {https://pubmed.ncbi.nlm.nih.gov/43540/},
  note = {Source identifier: 43540}
}