@misc{indiciae0279f19e1a3c,
  title = {Characterizing urban butterfly populations: The case for purposive point-count surveys},
  author = {Bret J. Lang and Philip M. Dixon and Robert W. Klaver and Jan R. Thompson and Mark P. Widrlechner},
  year = {2019},
  doi = {10.1007/s11252-019-00880-8},
  url = {https://pubs.usgs.gov/publication/70227957},
  note = {Source identifier: 70227957}
}