Zimmermann, H.J. <br/><br/>
FUZZY SET THEORY & ITS APPLICATIONS 

 - USA  Kluwer Hijhoff  1985 
 - vii,363p.  23cm. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Operation research<br/>Fuzzy sets
<br/><br/><label>Dewey Class. No.: </label>511.32  / Z7F