TY  - GEN
AU  - Hopcroft, John E.
AU  - Motwani, Rajeev
AU  - Ullman, Jeffrey D.
TI  - Introduction to automata theory, languages and computation
SN  - 9788131720479
U1  - 005.131 HOP/I 
PY  - 2008///
CY  - New Delhi
PB  - Pearson
KW  - Formal languages
KW  - Computational complexity.
ER  -