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Andree, Michael; Oeschger, Hans; Siegenthaler, Ulrich; Riesen, Trudi; Moell, Markus; Ammann, Brigitta; Tobolski, Kazimierz (1986). C-14 dating of plant macrofossils in lake sediment. Radiocarbon, 28(2A), pp. 411-416. Arizona Board of Regents, University of Arizona 10.1017/S0033822200007529
