D. T. Pugh, G. A. Alcock Gradients on the Mean and Instantaneous Sea Surface Level in a Shallow Water Region PDF
R. S. Bryant, C. Doekes, R. L.K. Tripe INDAPS, Integrated Navigation, Data Acquisition and Processing System PDF
R. W. Knox Two-Star Fix — A Letter to the Editor from Rear Admiral Robert W. Knox, USC&GS (Ret) formerly a Director of the International Hydrographic Bureau PDF
