Invited Lectures -- Nondeterministic Finite Automata—Recent Results on the Descriptional and Computational Complexity -- Language Decompositions, Primality, and Trajectory-Based Operations -- Automata, Probability, and Recursion -- Concurrency, Synchronization, and Conflicts in Petri Nets -- Technical Contributions -- Automated Compositional Reasoning of Intuitionistically Closed Regular Properties -- Antimirov and Mosses’s Rewrite System Revisited -- Antichain-Based Universality and Inclusion Testing over Nondeterministic Finite Tree Automata -- Testing Whether a Binary and Prolongeable Regular Language L Is Geometrical or Not on the Minimal Deterministic Automaton of Pref(L) -- Hopcroft’s Minimization Technique: Queues or Stacks? -- Learning Regular Languages Using Nondeterministic Finite Automata -- Multi-Return Macro Tree Transducers -- Computing Convex Hulls by Automata Iteration -- A Translation from the HTML DTD into a Regular Hedge Grammar -- Tree-Series-to-Tree-Series Transformations -- Automata-Theoretic Analysis of Bit-Split Languages for Packet Scanning -- Pattern Matching in DCA Coded Text -- Five Determinisation Algorithms -- Persistent Computations of Turing Machines -- On Complexity of Two Dimensional Languages Generated by Transducers -- Games for Temporal Logics on Trees -- A Run-Time Efficient Implementation of Compressed Pattern Matching Automata -- Composed Bisimulation for Tree Automata -- Hyper-Minimization in O(n 2) -- Deterministic Pushdown Automata and Unary Languages -- Finite Eilenberg Machines -- The Number of Runs in Sturmian Words -- 3-Way Composition of Weighted Finite-State Transducers -- Progressive Solutions to FSM Equations -- Combination of Context-Free Grammars and Tree Automata for Unranked and Ranked Trees -- Approximate Periods with Levenshtein Distance.