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Johnsen, S.; Clausen, W.; Dansgaard, W.; Fuhrer, K.; Gundestrup, N.; Hammer, C.; Iversen, P.; Jouzel, J.; Stauffer, B.; Steffensen, J. (1992). Irregular glacial interstadials recorded in a new greenland ice core. Nature, 359(6393), pp. 311-313. Macmillan Journals Ltd. 10.1038/359311a0
