@misc{indiciaef2f3fbbb3288,
  title = {Using natural archives to track sources and long-term trends of pollution: an introduction},
  author = {Jules Blais and Michael R. Rosen and John Smol},
  year = {2015},
  doi = {10.1007/978-94-017-9541-8\_1},
  url = {https://pubs.usgs.gov/publication/70145308},
  note = {Source identifier: 70145308}
}