Araujo,Isabel M.,ed <br/><br/>
Proceedings of the workshop semigroups and languages Lisboa,2002/ 
ed.by Isabel M. Araujo and others 
 - Singapore:  World scientific,  2004. 
 - vii,249p. 
<br/><br/><label>ISBN: </label>9789812389176 
<br/><br/><label>Subjects--Index Terms: </label>Semigroups 
<br/><br/><label>Universal Decimal Class. No.: </label>512.53    /  ARA