@misc{bleyer2007twop, author={Hans-J\"{u}rgen {Bleyer}}, title={{Tree-ring width of Picea abies (Karsten) from historical object sample IB21683-6}}, year={2007}, doi={10.1594/PANGAEA.620822}, url={https://doi.org/10.1594/PANGAEA.620822}, organization={Ingenieurb\"{u}ro f\"{u}r Hausforschung, Dendrochronologisches Jahrring Labor Bleyer}, type={data set}, publisher={PANGAEA} }