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Manni Auer
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Parabeltangenten
Activity
Manni Auer
Kurve aus Punkt und Leitkreis
Activity
Manni Auer
Ellipse und Hyperbel
Activity
Manni Auer
Parabel - Entstehen einer Kaustik
Activity
Manni Auer
Parabel-Brennstrahlen_3
Activity
Manni Auer
