@misc{indiciae6b2f55368c85,
  title = {The feasibility of using sequential extraction techniques for As and Se in soils and sediments},
  author = {Karen A. Gruebel and James A. Davis and James O. Leckie},
  year = {1988},
  doi = {10.2136/sssaj1988.03615995005200020016x},
  url = {https://pubs.usgs.gov/publication/70013800},
  note = {Source identifier: 70013800}
}