@misc{lochte2004ocis, author={Karin {Lochte} and Michael {Schl\"{u}ter}}, title={{Opal content in sediment core PS2257-1}}, year={2004}, doi={10.1594/PANGAEA.141244}, url={https://doi.org/10.1594/PANGAEA.141244}, type={data set}, publisher={PANGAEA} }