Recognisable Languages over Monads -- Garside and quadratic normalisation: a survey -- Grammar-Based Tree Compression -- On decidability of intermediate levels of concatenation hierarchies -- Ergodic in Finite permutations of minimal complexity -- Diverse Palindromic Factorization is NP-Complete -- Factorization in Formal Languages -- Consensus Game Acceptors -- On the Size of Two-Way Reasonable Automata for the Liveness Problem -- Squareable Words -- Complexity Analysis: Transformation Monoids of Finite Automata -- Palindromic complexity of trees -- Deciding proper conjugacy of classes of one-sided Finite-type-Dyck shifts -- Transfinite Lyndon words -- Unary patterns under permutations -- Finite Automata Over In Finite Alphabets: Two Models with Transitions for Local Change -- Enumeration formulin neutral sets -- On the Density of Context-Free and Counter Languages -- Star-Continuous Kleene Omega-Algebras -- Unary probabilistic and quantum automata on promise problems -- Generalizations of Code Languages with Marginal Errors -- Minimal Reversible Deterministic Finite Automata -- Multi-Sequential Word Relations -- The Boundary of Prefix-Free Languages -- A connected 3-state reversible Mealy automaton cannot generate an infinite Burnside group -- Path Checking for MTL and TPTL over Data Words -- On Distinguishing NC1 and NL -- Sur minimisation of automata -- On the Complexity of k-Piecewise Testability and the Depth of Automata -- Interval Exchange Words and the Question of Hof, Knill, and Simon -- State Complexity of Neighbourhoods and Approximate Pattern Matching -- Deterministic ordered restarting automata that compute functions -- Weight Assignment Logic -- Complexity Bounds of Constant-Space Quantum Computation.