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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
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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