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Djordje M. Kadijevich (PhD, University of Joensuu, Finland) is scientific counselor at the Mathematical Institute of Serbian Academy of Sciences and Arts, Serbia. Charoula Angeli (PhD, Indiana University) is associate professor of instructional technology at the University of Cyprus. Carsten Schulte (PhD, University of Paderborn, Germany) is professor of computer science education research at the Free University, Germany. |