TY  - BOOK
AU  - Natarajan, A M.
AU  - Tamilarasi, A.
AU  - Balasubramani, P.
TI  - Theory of automata and formal languages
SN  - 8122417299
U1  - 511.3  1
PY  - 2008///
CY  - New Delhi
PB  - New Age International Pvt Ltd
KW  - Context- free grammars
KW  - Pushdown automation
KW  - Undecidability
ER  -