Separating, strongly separating, and collapsing relativized complexity classes -- Complexity of quantifier elimination in the theory of algebraically closed fields -- Systolic automata — power, characterizations, nonhomogeneity -- A note on unique decipherability -- Outline of an algebraic language theory -- Thue systems and the Church-Rosser property -- Limits, higher type computability and type-free languages -- Traces, histories, graphs: Instances of a process monoid -- Recent results on automata and infinite words -- VLSI algorithms and architectures -- Decidability of monadic theories -- On the Ehrenfeucht conjecture on test sets and its dual version -- Sparse oracles, lowness, and highness -- Computability of probabilistic parameters for some classes of formal languages -- A truely morphic characterization of recursively enumerable sets -- On the Herbrand Kleene universe for nondeterministic computations -- An investigation of controls for concurrent systems by abstract control languages -- On generalized words of Thue-Morse -- Nondeterminism is essential for two-way counter machines -- Weak and strong fairness in CCS -- On the complexity of inductive inference -- Monotone edge sequences in line arrangements and applications -- Many-sorted temporal logic for multi-processes systems -- Process logics : two decidability results -- On searching of special classes of mazes and finite embedded graphs -- The power of the future perfect in program logics -- Hierarchy of reversal and zerotesting bounded multicounter machines -- On the power of alternation in finite automata -- The equivalence problem and correctness formulas for a simple class of programs -- Lower bounds for polygon simplicity testing and other problems -- A uniform independence of invariant sentences -- On the equivalence of compositions of morphisms and inverse morphisms on regular languages -- Some connections between presentability of complexity classes and the power of formal systems of reasoning -- Finding a maximum flow in /s,t/-planar network in linear expected time -- Nondeterministic logspace reductions -- Factoring multivariate polynomials over algebraic number fields -- Gödel numberings, principal morphisms, combinatory algebras -- Representations of integers and language theory -- New lower bound for polyhedral membership problem with an application to linear programming -- Decidability of the equivalence problem for synchronous deterministic pushdown automata -- Models and operators for nondeterministic processes -- Algorithms for string editing which permit arbitrarily complex edit constraints -- The structure of polynomial complexity cores -- Solving visibility problems by using skeleton structures -- Another look at parameterization using algebras with subsorts -- A lower bound on complexity of branching programs -- From dynamic algebras to test algebras -- Combinatorial games with exponential space complete decision problems -- Fast recognitions of pushdown automaton and context-free languages -- Multiprocessor systems and their concurrency -- Free constructions in algebraic institutions -- Remarks on comparing expressive power of logics of programs -- The complexity of problems concerning graphs with regularities -- On the complexity of slice functions -- An exponential lower bound for one-time-only branching programs -- A topological view of some problems in complexity theory -- Propositional dynamic logic with strong loop predicate.