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<title>Irodalmi hivatkozás: [105]</title>
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<div align="center" style="margin-bottom:30pt;"><b>Irodalmi hivatkozás: [105]</b></div>
B. A. Korgyemszkij: <i>Matematika fejtörők</i>. Budapest, 1972, Gondolat Könyvkiadó.</body></html>
