Volume 16, Number 3, 2004

•   Elena Calude, Bruce Mills, and Lan Mills: A Uniform Approach to Test Computational Complementarity

•   Alexander Meduna: Two-Way Metalinear PC Grammar Systems and Their Descriptional Complexity

•   Attila Nagy: Retractable state-finite automata without outputs

•   Reinhard Pöschel, Alexander Semigrodskikh, and Heiko Vogler Relationally defined clones of tree functions closed under selection or primitive recursion

•   Isto Aho: Notes on the properties of dynamic programming used in direct load control

•   Gerzson Kéri, and Ákos Kisvölcsey: On Computing the Hamming Distance

•   András Pluhár: The Recycled Kaplansky's Game

•   Sebastian Link: Distance Functional Dependencies in the Presence of Complex Values

•   Vu Duc Thi and Nguyen Hoang Son: Some Problems Related to Keys and the Boyce-Codd Normal Form

•   Nghia D. Vu: Relationships Between Closure Operations and Choice Functions - Equivalent Descriptions of a Family of Functional Dependencies