1. Bark L. S., Ganson P. P., and Meister N. A.: 1964, Tables of the Velocity of Sound in Sea Water, Pergamon Press.
2. Bramlette, M. N. and Bradley, W. H.: 1940, ?Geology and Biology of North Atlantic Deep-Sea Cores?, Pt. 1, Lithology and Geologic Interpretations. U.S. Geol. Survey Prof. Paper 19GA, 1?34.
3. Buchan S., Dewes F. C. D., McCann D. M., and Taylor Smith, D.: 1967, in A. F. Richards (ed.), Measurements of the Acoustic and Geotechnical Properties of Marine Sediment Cores?, Marine Geotechnique, pp. 65?92, University of Illinois Press, 323p.
4. Dewes, F. C. D.: 1968, ?X-Ray Examination of North Atlantic Cores?, Ministry of Defence Report (Contract No. N/CP12/11397/64/4B201/F9554), November, Unpublished.
5. Elmendorf, C. H. and Heezen, B. C.: 1957, ?Oceanographic Information for Engineering Submarine Cable Systeme?, Bell Telephone System, Submarine Cable Oceanography, Marine Biology and Cable Mechanic, New York, 1047?1099.