@misc{indiciaecc7aa5e728bf,
  title = {Cognitive model for recreational spatial behavior in an urban area},
  author = {Robert E. Lloyd and Robert Ader},
  year = {1980},
  doi = {10.1353/sgo.1980.0008},
  url = {https://pubs.usgs.gov/publication/70204689},
  note = {Source identifier: 70204689}
}