Harmonic analysis of tides: Names of stations for which the International Hydrographic Bureau has published slips containing constants PDF (English)
Romagna-Manoia The drawing and printing of marine charts at the Istituto Idrografico della R. Marina PDF (English)
M. P. Marti Employment of floating marks (beacons) by the Algeria-Tunisia hydrographic expedition PDF (English)
Otto v. Gruber Photogrammetric equipment of the Graf Zeppelin on the arctic voyage of 1931 and methods of restitution of observational material obtained PDF (English)
