1. Uncertainty estimates in regional and global observed temperature changes: A new data set from 1850
2. , , , , , , , . 2001. The Scientific Basis-Contribution of Working Group I to the third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, New York.
3. , , , , . 1997. ERA Description. ECMWF Re-Analysis Project Report Series, 1. Technical report, European Centre for Medium Range Weather Forecast. 66 pp.
4. 2005. Antarctic temperature changes during the observational period 1960–1998.http://www.unis.no/ research/geology/Geo_research/Ole/AntarcticTemperatureChanges.htm