Swedish Hydrographic Office: The Use of the Decca Navigator by the Royal Swedish Hydrographic Office PDF (English)
J. W.R. Griffiths, D. A. White The Effect of Stylus Size on the Performance of a Chemical Recorder PDF (English)
Harold E. Saunders, Gardner D. Blodgett Reconnaissance Mapping from Aerial Photographs in unexplored Country: With a Description of a Reconnaissance Map Covering the Coast of Wilkes Land and Adjacent Coasts in Antarctic PDF (English)
Asger Lundbak The North Sea Storm Surge of February 1, 1953 - Its Origin and Development PDF (English)
