@misc{indiciae0a63ded0f7d3,
  title = {Users as essential contributors to spatial cyberinfrastructures},
  author = {B.S. Poore},
  year = {2011},
  doi = {10.1073/pnas.0907677108},
  url = {https://pubs.usgs.gov/publication/70034168},
  note = {Source identifier: 70034168}
}