@misc{indiciae27abeb632bd8,
  title = {A Comparison of Natural and Urban Characteristics and the Development of Urban Intensity Indices Across Six Geographic Settings},
  author = {James A. Falcone and Jana Stewart and Steven Sobieszczyk and Jean Dupree and Gerard McMahon and Gary Buell},
  year = {2007},
  doi = {10.3133/sir20075123},
  url = {https://pubs.usgs.gov/publication/sir20075123},
  note = {Source identifier: sir20075123}
}