Zimmermann, H.J. <br/><br/>
Fuzzy set theory and its applications 

 - 4 
 - New Delhi  Springer (India)  2001 
 - xxv,514p. : ill.  
<br/><br/> includes bibliography and index 
<br/><br/><label>ISBN: </label>9788181285195 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fuzzy set theory