Polkowski, Lech <br/><br/>
Rough sets Mathematical foundations 

 - Heidelberg  Physica-Verlag  2002 
 - 534 
 - Advances in Soft Computing .
<br/><br/><label>ISBN: </label>3790815101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS<br/>SET THEORY
<br/><br/><label>Dewey Class. No.: </label>511.32 POL/R