Volume 66, Number 1, 1989
Adolfo Piperno:
Abstraction Problems in Combinatory Logic a Compositive Approach. 27-43
Jarkko Kari:
Observations Concerning a Public-Key Cryptosystem Based on Iterated Morphisms. 45-53
Zhang Luo Xin:
A Efficient Algorithm to Decide Whether a Monoid Presented by a Regular Church-Rosser Thue System is a Group. 55-63
Daniele Mundici:
Functions Computed by Monotone Boolean Formulas with no Repeated Variables. 113-114
Volume 66, Number 2, 1989
Selected Papers from ICALP 1987, Karlsruhe
Volker Diekert:
On the Knuth-Bendix Completion for Concurrent Processes. 117-136
Volume 66, Number 3, 1989
Hideki Yamasaki:
Language-Theoretical Representations of omega-Languages. 247-254
Akira Ito,
Katsushi Inoue,
Itsuo Takanami:
Deterministic Two-Dimensional On-Line Tessellation Acceptors are Equivalent to Two-Way Two-Dimensional Alternating Finite Automata Through 180°-Rotation. 273-287
Juha Honkala:
A Necessary Condition for the Rationality of the Zeta Function of a Regular Language. 341-347