Luca, Aldo De; Varricchio, Stefano <br/><br/>
Finiteness and regularity in semigroups and formal languages 

 -  Springer-Verlag, New York  1998 
 - 240 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groups; Algebra; Mathematics
<br/><br/><label>Dewey Class. No.: </label>PG 512.2  LUC-F