@misc{indiciaedf43479cfadc,
  title = {Element speciation definitions, analytical methodology, and some examples.},
  author = {Bernhard Michalke},
  year = {2003},
  doi = {10.1016/s0147-6513(03)00056-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/12915146/},
  note = {Source identifier: 12915146}
}