TY  - BOOK
AU  - Buchi, Richard. J.
AU  - Siefkes, Dirk., ed.
TI  - Finite automata, their algebras and grammers: towards a theory of fournal expressions
SN  - 0387969055
U1  - 511.3 
PY  - 1989///
CY  - New York
PB  - Spring-Verlag
ER  -