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2952 documents found.

Brightness discrimination data for the specification of quantity of illumination.

Published: | Blackwell, H.R.

Studies of psychophysical methods for measuring visual thresholds.

Published: | Blackwell, H.R.

Peripheral contrast tresholds for various and different wavelengths for adapting field and test stimulus.

Published: | Bouman, M.A.

De psychologie van het ongevalsgebeuren.

Published: | Winsemius, W.

Effect of pattern distribution on perception of relatives motion in low levels of illumination.

Published: | Stalder, H.I. & Lauer, A.R.

Electric lamps for railway signaling.

Published: | -

Stadsstraten 1952.

Published: | -

The visibility of lane markers in fog : preliminary analysis.

Published: | Gordon, D.A.

Research on two aspects of street lighting : accident statistics and road surface characteristics.

Published: | Harris, A.J. & Christie, A.W.

The light of pedestian crossings (a review specially prepared for the Municipal journal.

Published: | Cristie, A.W. & Harris, A.J.