@misc{indiciae5797c13ee987,
  title = {Radionuclides in soils, 1960–2006: A view from the World Congress of Soil Science},
  author = {Edward R. Landa and S. Uchida},
  year = {2007},
  doi = {10.1016/j.jenvrad.2007.11.004},
  url = {https://pubs.usgs.gov/publication/70212970},
  note = {Source identifier: 70212970}
}