Ian C. Russell Precision Hydrographic Surveys in the North Sea — Location of Wrecks and Obstructions PDF
A. Ulonska A More Accurate Hydrographic Survey — By Direct Measurement of Sound Velocity in the Sea PDF
Paul J. Grim, George H. Keller, Robert J. Barday Computer Produced Profiles of Microtopography as a Supplement to Contour Maps PDF
D. A. Greenberg, H. E. Sweers Possible Improvement to Matthews Tables in Areas of Canadian Data Holdings PDF
L. N. Pascoe World Bathymetric Charts — On the requirement for a World Wide Bathymetric Chart on a scale larger than the General Bathymetric Chart of the Oceans (GEBCO) PDF
