@misc{indiciaeb2f873a2f3a3,
  title = {Influence of Pb on microbial activity in Pb-contaminated soils},
  author = {J. E. Landmeyer and P. M. Bradley and F. H. Chapelle},
  year = {1993},
  doi = {10.1016/0038-0717(93)90064-i},
  url = {https://pubs.usgs.gov/publication/70185453},
  note = {Source identifier: 70185453}
}