Welzel, C <br/><br/>
None  [electronic resource] 

 -  HNO  Jun 2003 
 - 486-491 p.  digital 
<br/><br/> Publication Type: English Abstract; Journal Article 
<br/><br/><label>ISSN: </label>1433-0458 
<br/><br/><label>Standard No.: </label>10.1007/s00106-002-0722-9  doi