Friedrich, Oliver; Meier, K. J. Sebastian (2006): Suitability of stable oxygen and carbon isotopes of calcareous dinoflagellate cysts for paleoclimatic studies; evidence from the Campanian/Maastrichtian cooling phase. Elsevier, Amsterdam, Netherlands, Palaeogeography, Palaeoclimatology, Palaeoecology, 239 (3-4), 456-469, georefid:2006-088235