TY  - BOOK
T1  - An algebraic normal form for regular events.
A1  - Johansen, Peter 1938-
LA  - English
PP  - Lyngby
PB  - Polyteknisk Forlag
YR  - 1972
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217607689946
OP  - 9
CN  - QA171 J65 1972
SN  - 8750203320
KW  - Free groups.
KW  - Normal forms (Mathematics)
KW  - Sequential machine theory.
ER  -