@ARTICLE{Jeans_Christopher_Calcite_2012,
 author={Jeans, Christopher and Hu, Xiufang and Mortimore, Rory},
 volume={vol. 62},
 number={No 2},
 journal={Acta Geologica Polonica},
 howpublished={online},
 year={2012},
 publisher={Komitet Nauk Geologicznych PAN},
 publisher={Wydział Geologii UW},
 title={Calcite cements and the stratigraphical significance of the marine δ13C carbonate reference curve for the Upper Cretaceous Chalk of England},
 URL={http://journals.pan.pl/Content/81874/PDF/jeans.pdf},
 doi={10.2478/v10263-012-0008-9},
}