@misc{indiciae44f0a01d91f4,
  title = {Some thoughts on problems associated with various sampling media used for environmental monitoring},
  author = {A. J. Horowitz},
  year = {1997},
  doi = {10.1039/a704604i},
  url = {https://pubs.usgs.gov/publication/70019446},
  note = {Source identifier: 70019446}
}