@misc{indiciae06d1d9230e7f,
  title = {U.S. Geological Survey Global Seismographic Network - Five-Year Plan 2006-2010},
  author = {William S. Leith and Lind S. Gee and Charles R. Hutt},
  year = {2009},
  doi = {10.3133/ofr20091013},
  url = {https://pubs.usgs.gov/publication/ofr20091013},
  note = {Source identifier: ofr20091013}
}