Murata, Yasusada <br/><br/>
On the Number and the Composition of Varieties 
 2009 

 -  2009 
 - 1065-1087  V.  119  Issue.   539 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Subjects--Index Terms: </label>Composition of Varieties;