Passier, Hilde F.; Middelburg, Jack J.; de Lange, Gert J.; Boettcher, Michael E. (1999): Modes of sapropel formation in the eastern Mediterranean; some constraints based on pyrite properties. Elsevier, Amsterdam, Netherlands, In: Rohling, Eelco J. (editor), Fifth decade of Mediterranean paleoclimate and sapropel studies, 153 (1-4), 199-219, georefid:1999-015187