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Sowers, Todd; Brook, Ed; Etheridge, David; Blunier, Thomas; Fuchs, Andreas; Leuenberger, Markus; Chappellaz, Jerome; Barnola, Jean Marc; Wahlen, Martin; Deck, Bruce; Weyhenmeyer, Connie (1997). An interlaboratory comparison of techniques for extracting and analyzing trapped gases in ice cores. Journal of geophysical research, 102(C12), pp. 26527-26538. American Geophysical Union 10.1029/97JC00633
Chappellaz, Jérôme; Brook, Ed; Blunier, Thomas; Malaizé, Bruno (1997). CH4 and δ18O of O2 records from Antarctic and Greenland ice: A clue for stratigraphic disturbance in the bottom part of the Greenland Ice Core Project and the Greenland Ice Sheet Project 2 ice cores. Journal of Geophysical Research: Oceans, 102(C12), pp. 26547-26557. American Geophysical Union 10.1029/97JC00164
