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Hegerl, Gabriele; Luterbacher, Jürg; González-Rouco, Fidel; Tett, Simon F.B.; Crowley, Thomas; Xoplaki, Elena (2011). Influence of human and natural forcing on European seasonal temperatures. Nature geoscience, 4(2), pp. 99-103. London: Nature Publishing Group 10.1038/ngeo1057
Forster, Piers; Hegerl, Gabriele; Knutti, Reto; Ramaswamy, V.; Solomon, Susan; Stocker, Thomas F.; Stott, Peter; Zwiers, Francis (2007). Assessing uncertainty in climate simulations. Nature reports - climate change, 1(709), pp. 63-64. London: Nature Publishing Group 10.1038/climate.2007.46a
