Castellini, Gabriele <br/><br/>
Categorical closure operators 
Gabriele Castellini 
 - 1st ed 
 - Boston  Birkhauser  2003 
 - xii, 300 p. ; 24 cm 
<br/><br/> Includes bibliographical references (p. [279]-288) and index 
<br/><br/><label>ISBN: </label>9780817642501 
<br/><br/><label>ISSN: </label>2003044307 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Categories (Mathematics)<br/>Closure operators
<br/><br/><label>Dewey Class. No.: </label>511.3 CAS