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Balazs Koren
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Ellipse
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Balazs Koren
2012. oktober, 16. érettségi feladat
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Balazs Koren
Kikcskeresés
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Balazs Koren
Interesting tangents
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Balazs Koren
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Kaleidoscope
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Michael Borcherds
GeoGebra Courses for STEM: Examples
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Anthony OR 柯志明
Having fun with GeoGebra (Linz 2015)
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Michael Borcherds
A hölgy vagy a tigris
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Móricz Márk
