@misc{schweingruber2007tmop, author={Fritz Hans {Schweingruber}}, title={{Tree-ring measurements of Picea mariana (Black spruce) from sample QUEBEC-281}}, year={2007}, doi={10.1594/PANGAEA.597193}, url={https://doi.org/10.1594/PANGAEA.597193}, organization={Swiss Federal Institute for Forest, Snow and Landscape Research}, type={data set}, publisher={PANGAEA} }