@misc{indiciaee2f83b83034d,
  title = {The Vigil Network: Preservation and access of data},
  author = {William W. Emmett and R. F. Hadley},
  year = {1968},
  doi = {10.3133/cir460c},
  url = {https://pubs.usgs.gov/publication/cir460C},
  note = {Source identifier: cir460C}
}