Friedrich, Oliver; Norris, Richard D.; Bornemann, Andre; Beckmann, Britta; Palike, Heiko; Worstell, Paula; Hofmann, Peter; Wagner, Thomas (2008): Cyclic changes in Turonian to Coniacian planktic foraminiferal assemblages from the tropical Atlantic Ocean. Elsevier, Amsterdam, Netherlands, Marine Micropaleontology, 68 (3-4), 299-313, georefid:2008-120728