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Johnsen, S.J., H.B. Clausen, W. Dansgaard, N.S. Gundestrup, C.U. Hammer, and H. Tauber. 1995. The Eem stable isotope record along the GRIP ice core and its interpretation. Quaternary Research 43:117-124.
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Johnsen, S.J., H.B. Clausen, W. Dansgaard, N.S. Gundestrup, C.U. Hammer, U. Andersen, K.K. Andersen, C.S. Hvidberg, D. Dahl-Jensen, J.P. Steffensen, H. Shoji, A.E. Sveinbjörnsdóttir, J.W.C. White, J. Jouzel, and D. Fisher. 1997. The d18O record along the Greenland Ice Core Project deep ice core and the problem of possible Eemian climatic instability. Journal of Geophysical Research 102:26397-26410.
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Legrand, M.R., C.U. Hammer, M. De Angelis, J. Savarino, R. Delmas, H.B. Clausen, and S.J. Johnsen. 1997. Sulfur-containing species (methanesulfonate and SO4) over the last climatic cycle in the Greenland Ice Core Project (central Greenland) ice core. Journal of Geophysical Research 102:26663-26679.
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Moore, J.C., E.W. Wolff, H.B. Clausen, C.U. Hammer, M.R. Legrand, and K. Fuhrer. 1994. Electrical response of the Summit-Greenland ice core to ammonium, sulphuric acid, and hydrochloric acid. Geophysical Research Letters 21:565-568.
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Steffensen, J.P., H.B. Clausen, C.U. Hammer, M.R. Legrand, and M. De Angelis. 1997. The chemical composition of cold events within the Eemian section of the Greenland Ice Core Project ice core from Summit, Greenland. Journal of Geophysical Research 102:26747-26754.
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Taylor, K.C., C.U. Hammer, R.B. Alley, H.B. Clausen, D. Dahl-Jensen, A.J. Gow, N.S. Gundestrup, J. Kipfstuhl, J.C. Moore, and E.D. Waddington. 1993. Electrical conductivity measurements from the GISP2 and GRIP Greenland ice cores. Nature 366:549-552.
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White, J.W.C., L.K. Barlow, D. Fisher, P.M. Grootes, J. Jouzel, S.J. Johnsen, M. Stuiver, and H.B. Clausen. 1997. The climate signal in the stable isotopes of snow from Summit, Greenland: Results of comparisons with modern climate observations. Journal of Geophysical Research 102:26425-26439.
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Wolff, E.W., J.C. Moore, H.B. Clausen, and C.U. Hammer. 1997. Climatic implications of background acidity and other chemistry derived from electrical studies of the Greenland Ice Core Project ice core. Journal of Geophysical Research 102:26325-26332.
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Wolff, E.W., J.C. Moore, H.B. Clausen, C.U. Hammer, J. Kipfstuhl, and K. Fuhrer. 1995. Long-term changes in the acid and salt concentrations of the Greenland Ice Core Project ice core from electrical stratigraphy. Journal of Geophysical Research 100:16249-16263.