@misc{indiciae6e9f30c1497b,
  title = {Challenge theme 7: Information support for management of border security and environmental protection: Chapter 9 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science},
  author = {Jean W. Parcher and William R. Page},
  year = {2013},
  doi = {10.3133/cir13809},
  url = {https://pubs.usgs.gov/publication/cir13809},
  note = {Source identifier: cir13809}
}