@misc{indiciaeee18563e315d,
  title = {Pliocene climates of the Northern Hemisphere; abstracts of the joint US/USSR workshop on Pliocene paleoclimates, Moscow, USSR, April, 1990},
  author = {Robert Stephen Thompson and Olga K. Borisova and Tatanya V. Svetlitskaya},
  year = {1991},
  doi = {10.3133/ofr91447},
  url = {https://pubs.usgs.gov/publication/ofr91447},
  note = {Source identifier: ofr91447}
}