@misc{ruddiman2003ccco, author={William F {Ruddiman} and John W {Farrell}}, title={{Calcium carbonate content of sediment core RC09-44}}, year={2003}, doi={10.1594/PANGAEA.93297}, url={https://doi.org/10.1594/PANGAEA.93297}, organization={Lamont-Doherty Earth Observatory of Columbia University, New York}, type={data set}, publisher={PANGAEA} }