Knechtle, Beat <br/><br/>
Increase in participation but decrease in performance in age group mountain marathoners in the 'Jungfrau Marathon': a Swiss phenomenon?  [electronic resource] 

 -  SpringerPlus  2015 
 - 523 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2193-1801 
<br/><br/><label>Standard No.: </label>10.1186/s40064-015-1330-y  doi