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A color comparator for lights in the vicinity of traffic signals
Aiming for better headlighting
Comparison of driver behavior on lighted and unlighted highways
Efforts to improve visibility in fog
Experimental studies of night vision as a function of age and changes in illumination
Field test of roadway lighting
Night legibility distances of highway signs
Optical properties of the atmosphere and highway lighting in fog
Relation between scotopic vision as measured by the Night Sight meter, daylight vision and age
Vision at levels of night road illumination. III. Literature 1956-57