Haq, B. U.; Okada, H.; Lohmann, G. P. (1979): Paleobiogeography of the Paleocene/Eocene calcareous nannoplankton from the North Atlantic Ocean. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Tucholke, B. E., Vogt, P. R., Murdmaa, I. O., Rothe, P., Houghton, R. L., Galehouse, J. S., McNulty, C. L., Jr., Okada, H., Kendrick, J. W., Demars, K. R., McCave, I. N., Kaneps, A. (editor), Deep Sea Drilling Project, Leg 43 of the cruises of the drilling vessel Glomar Challenger; Istanbul, Turkey to Norfolk, Virginia, June-August, 1975, 617-629, georefid:1980-001552