Welpe, E <br/><br/>
[Research on the local adaptation and the negative after-image of the ellipse phenomenon in the frequency range of 81-104 Hz].  [electronic resource] 

 -  Zeitschrift fur Biologie  Jun 1970 
 - 340-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adaptation, Ocular<br/>Afterimage<br/>Humans