| |
| 1970 | ||
|---|---|---|
| 2 | H. E. Pickett: Direct and Subdirect Product Structure Theorems for Non-Deterministic Automata. Mathematical Systems Theory 4(4): 357-372 (1970) | |
| 1967 | ||
| 1 | EE | H. E. Pickett: Note Concerning the Algebraic Theory of Automata. J. ACM 14(2): 382-388 (1967) |