Semigroups and Languages :  Proceedings of the Workshop. Lisboa, Portugal, 27-29 November 2002 / 
editors, Isabel M. Araújo ... [et al] 
 - River Edge, NJ :  World Scientific,  2004 
 - vii, 249 p. :  ill. ;  24 cm. 
<br/><br/> Proceedings of workshop held at the Center of Algebra of the University of Lisbon. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9812389172 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Formal languages--Congresses.<br/>Semigroups--Congresses.
<br/><br/><label>Subjects--Index Terms: </label>Ngôn ngữ thông dụng Nhóm ngôn ngữ 
<br/><br/><label>Dewey Class. No.: </label>305.7