TY  - GEN
AU  - Hopcroft,John E.
AU  - Ullman, Jeffrey D.
AU  - Motwani, Rajeev
TI  - Introduction to automata theory, languages, and computation
U1  - 511.35 
PY  - 2009///
CY  - New Delhi
PB  - Pearson
KW  - Machine theory; Formal languages; Computational complexity
ER  -