Raymo, M. E.; Oppo, D. W.; Flower, B. P.; Hodell, D. A.; McManus, James F.; Venz, K. A.; Kleiven, K. F.; McIntyre, K. (2004): Stability of North Atlantic water masses in face of pronounced climate variability during the Pleistocene. American Geophysical Union, Washington, DC, United States, Paleoceanography, 19 (2), georefid:2006-012314