Jenkins, D. Graham (1993): Cenozoic southern mid and high latitude biostratigraphy and chronostratigraphy based on planktonic foraminifera. American Geophysical Union, Washington, DC, United States, In: Kennett, James P. (editor), Warnke, Detlef A. (editor), The Antarctic paleoenvironment; a perspective on global change; Part two, 60, 125-144, georefid:1994-044015