@misc{indiciae9b60db257bb8,
  title = {Accumulation of atmospheric sulfur in some Costa Rican soils},
  author = {Carleton R. Bern and Alan R. Townsend},
  year = {2013},
  doi = {10.1029/2008jg000692},
  url = {https://pubs.usgs.gov/publication/70047587},
  note = {Source identifier: 70047587}
}