Apel, W D <br/><br/>
Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande.  [electronic resource] 

 -  Physical review letters  Oct 2011 
 - 171104 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1079-7114 
<br/><br/><label>Standard No.: </label>10.1103/PhysRevLett.107.171104  doi