Petrizzo, Maria Rose (2007): The onset of the Paleocene-Eocene Thermal Maximum (PETM) at Sites 1209 and 1210 (Shatsky Rise, Pacific Ocean) as recorded by planktonic Foraminifera. Elsevier, Amsterdam, Netherlands, Marine Micropaleontology, 63 (3-4), 187-200, georefid:2007-116729