Polkowski, Lech (et-al) <br/><br/>
Rough sets in knowledge discovery 2: studies in fuzziness and soft computing  

 -  Springer: Tokyo  1998 
 - 600 p. 
<br/><br/><label>ISBN: </label>0003790811203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>knowledge discovery :
<br/><br/><label>Dewey Class. No.: </label>006.331  / R58