Richter, Hans <br/><br/>
Supraliminal contrast functions and voluntary negative modulation of accommodation in the visual system / 
by Hans Richter 
 - Uppsala :  Acta Universitatis Upsaliensis,  1993 
 - v, 36 p. ;  25 cm. 
 - Comprehensive summaries of Uppsala dissertations from the faculty of social science ;  35 .
<br/><br/><label>ISBN: </label>9155430848 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eye--Accomodation and refraction<br/>Vision , Ocular
<br/><br/><label>Dewey Class. No.: </label>612.84