Invited Papers -- The Multicore Revolution -- Streaming Algorithms for Selection and Approximate Sorting -- Adventures in Bidirectional Programming -- Program Analysis Using Weighted Pushdown Systems -- The Complexity of Zero Knowledge -- Contributed Papers -- The Priority k-Median Problem -- "Rent-or-Buy" Scheduling and Cost Coloring Problems -- Order Scheduling Models: Hardness and Algorithms -- On Simulatability Soundness and Mapping Soundness of Symbolic Cryptography -- Key Substitution in the Symbolic Analysis of Cryptographic Protocols -- Symbolic Bisimulation for the Applied Pi Calculus -- Non-mitotic Sets -- Reductions to Graph Isomorphism -- Strong Reductions and Isomorphism of Complete Sets -- Probabilistic and Topological Semantics for Timed Automata -- A Theory for Game Theories -- An Incremental Bisimulation Algorithm -- Logspace Algorithms for Computing Shortest and Longest Paths in Series-Parallel Graphs -- Communication Lower Bounds Via the Chromatic Number -- The Deduction Theorem for Strong Propositional Proof Systems -- Satisfiability of Algebraic Circuits over Sets of Natural Numbers -- Post Embedding Problem Is Not Primitive Recursive, with Applications to Channel Systems -- Synthesis of Safe Message-Passing Systems -- Automata and Logics for Timed Message Sequence Charts -- Propositional Dynamic Logic for Message-Passing Systems -- Better Algorithms and Bounds for Directed Maximum Leaf Problems -- Faster Algorithms for All-Pairs Small Stretch Distances in Weighted Graphs -- Covering Graphs with Few Complete Bipartite Subgraphs -- Safely Composing Security Protocols -- Computationally Sound Typing for Non-interference: The Case of Deterministic Encryption -- Bounding Messages for Free in Security Protocols -- Triangulations of Line Segment Sets in the Plane -- Reconstructing Convex Polygons and Polyhedra from Edge and Face Counts in Orthogonal Projections -- Finding a Rectilinear Shortest Path in R 2 Using Corridor Based Staircase Structures -- Compressed Dynamic Tries with Applications to LZ-Compression in Sublinear Time and Space -- Stochastic Müller Games are PSPACE-Complete -- Solving Parity Games in Big Steps -- Efficient and Expressive Tree Filters -- Markov Decision Processes with Multiple Long-Run Average Objectives -- A Formal Investigation of Diff3 -- Probabilistic Analysis of the Degree Bounded Minimum Spanning Tree Problem -- Undirected Graphs of Entanglement 2 -- Acceleration in Convex Data-Flow Analysis -- Model Checking Almost All Paths Can Be Less Expensive Than Checking All Paths -- Closures and Modules Within Linear Logic Concurrent Constraint Programming.