Klir, George J <br/><br/>
Fuzzy set theory: foundations and applications 

 - 1st 
 - New Jersey  PRentice Hall International  1997 
 - viii,245p p. 
<br/><br/><label>ISBN: </label>0 13 571258 0 
<br/><br/><label>Subjects--Index Terms: </label>Fuzzy sets