TY  - BOOK
AU  - Hopcroft, John E.
AU  - Ullman, Jeffrey D.
TI  - Introduction to Automata Theory, Languages, and Computation
SN  - 8185015961
U1  - 006.3 
PY  - 2002///
CY  - New Delhi: 
PB  - Narosa Publishing House, 
KW  - Automata
KW  - Chomsky Hierarchy
KW  - Computer Science
KW  - Pushdown Automata
ER  -