TY  - BOOK
AU  - Rozenberg, Grzegorz
AU  - Thomas, Wolfgang Eds.,
TI  - Developments in language theory: foundations, applications, and perspectives : Aachen, Germany, 6-9 July 1999
SN  - 9810243804
CY  - Singapore
KW  - Formal languages
KW  - Congresses
ER  -