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2. Simultaneous brightness contrast for flashes of lisht of different durations;Alpern;Invest. Opthal.,1963
3. Spatial factors in the Broca-Sulzer phenomenon;Arend;J. opt. Soc. Am.,1973
4. Some temporal factors in vision;Byonton,1961
5. La sensation lumineuse en fonction du temps;Broca;J. Physiol. Pathol. gen.,1902