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Loulergue, Laetitia; Schilt, Adrian; Spahni, Renato; Masson-Delmotte, Valérie; Blunier, Thomas; Lemieux, Bénédicte; Barnola, Jean-Marc; Raynaud, Dominique; Stocker, Thomas F.; Chappellaz, Jérôme (2008). Orbital and millennial-scale features of atmospheric CH4 over the past 800,000 years. Nature, 453(7193), pp. 383-386. London: Macmillan Journals Ltd. 10.1038/nature06950
