Considerations of sighting difficulties in ocean navigation during various conditions of daylight; night vision, including sensitivity of eye to weak light, adaptation of darkness, twilight myopia, night binoculars.
Visibility problems of navigator
Les problemes visuels du navigateur
Revue Generale des Sciences ; 56 , n 3-4
1949
9 pages
Bibliography
Aufsatz (Zeitschrift)
Französisch
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