@misc{indiciae803c72510435,
  title = {Geobotanical map of the U.S.S.R.},
  author = {V.B. Sochava},
  year = {2009},
  doi = {10.1080/00206816009473565},
  url = {https://pubs.usgs.gov/publication/70220537},
  note = {Source identifier: 70220537}
}