Beck, J <br/><br/>
Lightness differences and the perceived segregation of regions and populations.  [electronic resource] 

 -  Perception & psychophysics  Mar 1991 
 - 257-69 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0031-5117 
<br/><br/><label>Standard No.: </label>10.3758/bf03214310  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contrast Sensitivity<br/>Humans<br/>Light<br/>Pattern Recognition, Visual