@misc{indiciae6a512f93c7ac,
  title = {Visitor use patterns in Yosemite National Park},
  author = {J. W. van Wagtendonk},
  year = {1980},
  doi = {10.1177/004728758001900203},
  url = {https://pubs.usgs.gov/publication/1007443},
  note = {Source identifier: 1007443}
}