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Spahni, Renato; Chappellaz, Jérôme; Stocker, Thomas F.; Loulergue, Laetitia; Hausammann, Gregor; Kawamura, Kenji; Flückiger, Jacqueline; Schwander, Jakob; Raynaud, Dominique; Masson-Delmotte, Valérie; Jouzel, Jean (2005). Atmospheric methane and nitrous oxide of the late Pleistocene from Antarctic ice cores. Science, 310(5752), pp. 1317-1321. American Association for the Advancement of Science 10.1126/science.1120132
