@misc{indiciae02e463574176,
  title = {A sociogram for the cranes of the world},
  author = {D. H. Ellis and S.R. Swengel and George W. Archibald and C. B. Kepler},
  year = {1998},
  doi = {10.1016/s0376-6357(98)00008-4},
  url = {https://pubs.usgs.gov/publication/5223498},
  note = {Source identifier: 5223498}
}