Tree-rings as integrators for normal and anthropogenic environmental changes

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Schweingruber, F. H. (1992). Tree-rings as integrators for normal and anthropogenic environmental changes. In R. Bohr, A. Nienartowicz, & J. Wilkon-Michalska (Eds.), Some ecological processes of the biological systems in north Poland (pp. 171-186). Torun: Nicholas Copernicus University Press.