@misc{indiciaeee3e08ce4efd,
  title = {Mineral exploration and soil analysis using in situ neutron activation},
  author = {F. E. Senftle and A.F. Hoyte},
  year = {1966},
  doi = {10.1016/0029-554x(66)90275-8},
  url = {https://pubs.usgs.gov/publication/70009985},
  note = {Source identifier: 70009985}
}