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Fischer, Hubertus; Behrens, Melanie; Bock, Michael; Richter, Ulrike; Schmitt, Jochen; Loulergue, Laetitia; Chappellaz, Jerome; Spahni, Renato; Blunier, Thomas; Leuenberger, Markus; Stocker, Thomas F. (2008). Changing boreal methane sources and constant biomass burning during the last termination. Nature, 452(7189), pp. 864-867. London: Macmillan Journals Ltd. 10.1038/nature06825
