Boersma, A.; Shackleton, N. J. (1977): Tertiary oxygen and carbon isotope stratigraphy, Site 357 (mid latitude South Atlantic). Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 39 (Amsterdam, Neth. to Cape Town, S. Afr., Oct.-Dec. 1974), 911-924, georefid:1978-003306