HEINSOHN,J, KRUSE,R, SCHWECKE,R <br/><br/>
UNCERTAINITY AND VAGUENESS IN KNOWLEDGE BASED SYSTEMS: NUMERICAL METHODS 

 - BERLIN  SV  1991 
 -  491 
 - ARTIFICIAL INTELLIGENCE .
<br/><br/> BR-414 
<br/><br/><label>ISBN: </label>NCST  98 
<br/><br/><label>Dewey Class. No.: </label>901