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Kress, Anne; Hangartner, Sarah; Bugmann, Harald; Büntgen, Ulf; Frank, David C.; Leuenberger, Markus; Siegwolf, Rolf T.W.; Saurer, Matthias (2014). Swiss tree rings reveal warm and wet summers during medieval times. Geophysical Research Letters, 41(5), pp. 1732-1737. American Geophysical Union 10.1002/2013GL059081
