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R. C. Preece, P. Coxon, J. E. Robinson, New Biostratigraphic Evidence of the Post-Glacial Colonization of Ireland and for Mesolithic Forest Disturbance, Journal of Biogeography, Vol. 13, No. 6 (Nov., 1986), pp. 487-509
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Preece et al. (1986) studied this question.
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