Semigroups :  Algebraic theory and applications to formal languages and codes / 
edited by C. Bonzini, A. Cherubini and C. Tibiletti. 
 - Singapore :   World scientific,  c1993. 
 - xiii, 331 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>9810215215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups		<br/>Algebraic number theory<br/>Formal languages.
<br/><br/><label>Dewey Class. No.: </label>512.2 SEM