Vose, R. S.; Schmoyer, R. L.; Steurer, P. M.; Peterson, T. C.; Heim, R.; Karl, T. R.; Eischeid, J. K. (1992-07-01). The Global Historical Climatology Network: Long-term monthly temperature, precipitation, sea level pressure, and station pressure data. U.S. Department of Energy. Office of Scientific and Technical Information. doi:10.2172/10178730. OSTI10178730.
"Glossary". Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. Intergovernmental Panel on Climate Change. 2001-01-20. Archived from the original on 2017-01-26. Retrieved 2008-05-22.
Vose, R. S.; Schmoyer, R. L.; Steurer, P. M.; Peterson, T. C.; Heim, R.; Karl, T. R.; Eischeid, J. K. (1992-07-01). The Global Historical Climatology Network: Long-term monthly temperature, precipitation, sea level pressure, and station pressure data. U.S. Department of Energy. Office of Scientific and Technical Information. doi:10.2172/10178730. OSTI10178730.
"Glossary". Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. Intergovernmental Panel on Climate Change. 2001-01-20. Archived from the original on 2017-01-26. Retrieved 2008-05-22.