## Volume XIV, 2004

**Co-determinism and unambiguity of automata accepting finite or infinite words.**, pages 1-11

**Hardly perfect graphs.**, pages 12-22

**A Question Answering System for Italian Language.**, pages 23-35

**The Quick Check Pre-unification Filter for Typed Grammars: Further Advances.**, pages 36-50

**On Hidden Algebra Semantics of Object Oriented Languages.**, pages 51-68

**Iterative Algorithm for Construction of a Tree from its Pre-order and Post-order Traversals in Linear Time and Space.**, pages 69-80

**Multi-Valued Stable Semantics for Logic Programs.**, pages 81-90

**Modelling and Verification with Jumping Petri Nets.**, pages 91-99