Invited Papers -- Hyper-Encryption and Everlasting Security -- Models and Techniques for Communication in Dynamic Networks -- What Is a Theory? -- Algorithms -- A Space Lower Bound for Routing in Trees -- Labeling Schemes for Dynamic Tree Networks -- Tight Bounds for the Performance of Longest-in-System on DAGs -- Approximate Strong Separation with Application in Fractional Graph Coloring and Preemptive Scheduling -- Balanced Coloring: Equally Easy for All Numbers of Colors? -- The Complexity of Graph Isomorphism for Colored Graphs with Color Classes of Size 2 and 3 -- On the Complexity of Generating Maximal Frequent and Minimal Infrequent Sets -- On Dualization in Products of Forests -- An Asymptotic (ln ?/ ln ln ?)-Approximation Algorithm for the Scheduling Problem with Duplication on Large Communication Delay Graphs -- Scheduling at Twilight the EasyWay -- Complexity of Multi-dimensional Loop Alignment -- A Probabilistic 3—SAT Algorithm Further Improved -- The Secret of Selective Game Tree Search, When Using Random-Error Evaluations -- Randomized Acceleration of Fundamental Matrix Computations -- Approximations for ATSP with Parametrized Triangle Inequality -- A New Diagram from Disks in the Plane -- Computing the Maximum Detour and Spanning Ratio of Planar Paths, Trees, and Cycles -- Current Challenges -- On the Parameterized Intractability of Closest Substring and Related Problems -- On the Complexity of Protein Similarity Search under mRNA Structure Constraints -- Pure Dominance Constraints -- Improved Quantum Communication Complexity Bounds for Disjointness and Equality -- On Quantum Computation with Some Restricted Amplitudes -- A Quantum Goldreich-Levin Theorem with Cryptographic Applications -- On Quantum and Approximate Privacy -- On Quantum Versions of the Yao Principle -- Computational and Structural Complexity -- Describing Parameterized Complexity Classes -- On the Computational Power of Boolean Decision Lists -- How Many Missing Answers Can Be Tolerated by Query Learners? -- Games with a Uniqueness Property -- Bi-Immunity Separates Strong NP-Completeness Notions -- Complexity of Semi-algebraic Proofs -- A Lower Bound Technique for Restricted Branching Programs and Applications -- The Complexity of Constraints on Intervals and Lengths -- Automata and Formal Languages -- Nesting Until and Since in Linear Temporal Logic -- Comparing Verboseness for Finite Automata and Turing Machines -- On the Average Parallelism in Trace Monoids -- A Further Step towards a Theory of Regular MSC Languages -- Existential and Positive Theories of Equations in Graph Products -- The Membership Problem for Regular Expressions with Intersection Is Complete in LOGCFL -- Recognizable Sets of Message Sequence Charts -- Strong Bisimilarity and Regularity of Basic Parallel Processes Is PSPACE-Hard -- On the Enumerative Sequences of Regular Languages on k Symbols -- Logic in Computer Science -- Ground Tree Rewriting Graphs of Bounded Tree Width -- Timed Control Synthesis for External Specifications -- Axiomatizing GSOS with Termination -- Axiomatising Tree-Interpretable Structures -- EXPSPACE-Complete Variant of Guarded Fragment with Transitivity -- A Parametric Analysis of the State Explosion Problem in Model Checking -- Generalized Model-Checking over Locally Tree-Decomposable Classes -- Learnability and Definability in Trees and Similar Structures.