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The effect of the Purkinje shift on the brightness of highway signs at night
Fry, John Pray, 1939-
Text (1967)
Part of
Electronic Theses & Dissertations
Sign legibility as a function of sign luminance, ambient illumination, contrast direction, contrast level, and age and adaptation level of observers
Dyer, Frederick N.
Text (1965)
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Electronic Theses & Dissertations
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