TY  - BOOK
AU  - Hopcroft, John E .
AU  - Ullman, Jeffrey D.
TI  - Introduction to automata theory, languages and computation
SN  - 8185015961
U1  - 005.131 
PY  - 1979///
CY  - New Delhi
PB  - Narosa Publishing House
KW  - Computer science
KW  - Set notations
KW  - Relations
KW  - Regular sets
ER  -