Dowsett, Harry J.; Poore, Richard Z. (1990): Pliocene paleoceanography of North Atlantic Deep Sea Drilling Project Site 552; application of planktic foraminifer transfer function GSF18. U. S. Geological Survey, Reston, VA, United States, In: Gosnell, Linda B. (editor), Poore, Richard Z. (editor), Pliocene climates; scenario for global warming, OF 90-0064, 11-13, georefid:1990-033289