?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Facta.bibl.u-szeged.hu%2F38521%2F&rft.title=Acta+Cybernetica+%3A+Volume+17.+Number+3.&rft.date=2006&rft.type=Foly%C3%B3irat&rft.type=NonPeerReviewed&rft.format=full&rft.language=hu&rft.identifier=http%3A%2F%2Facta.bibl.u-szeged.hu%2F38521%2F1%2Fcybernetica_017_numb_003.pdf&rft.identifier=+++Acta+Cybernetica+%3A+Volume+17.+Number+3.++(2006)+++&rft.language=eng