@misc{indiciae38fcb126bcc9,
  title = {Increasing rates of atmospheric mercury deposition in midcontinental North America},
  author = {Edward B. Swain and Daniel R. Engstrom and Mark E. Brigham and Thomas A. Henning and P.L. Brezonik},
  year = {1992},
  doi = {10.1126/science.257.5071.784},
  url = {https://pubs.usgs.gov/publication/70175406},
  note = {Source identifier: 70175406}
}