@misc{indiciaed52e2cae19ab,
  title = {Satellite monitors cranes migrating from Siberia},
  author = {D. H. Ellis and U. Markin},
  year = {1991},
  doi = {10.54081/jes.004/03},
  url = {https://pubs.usgs.gov/publication/5222567},
  note = {Source identifier: 5222567}
}