Henri Lacombe The RANA Radionavigator: Characteristics, Testing and Operation of a Radionavigational Chain PDF (English)
Walter Stanner Observation of Consol Signals at Great Distances with Special Emphasis on the so-called « Peiltakt » Phenomenon PDF (English)
H. R. Brooks Use of Aerial Photographs for Revision of Land Information on Nautical Charts PDF (English)
André Gougenheim Harmonic Analysis of a Short Period of Tidal Observations: Separation of two Constituents of approximately Equivalent Angular Velocity PDF (English)
