Robert Geretschlager
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Geometric Gems: An Appreciation For Geometric Curiosities - Volume Ii: The Wonders Of Quadrilaterals: 35 (Problem Solving in Mathematics and Beyond)
Posamentier, Alfred S; Geretschlager, Robert
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Geometric Gems: An Appreciation For Geometric Curiosities - Volume Iii: The Wonders Of Circles: 36 (Problem Solving in Mathematics and Beyond)
Posamentier, Alfred S; Geretschlager, Robert
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Central European Olympiad, A: The Mathematical Duel: 7 (Problem Solving in Mathematics and Beyond)
Geretschlager, Robert
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Geometric Gems: An Appreciation For Geometric Curiosities - Volume I: The Wonders Of Triangles: 32 (Problem Solving in Mathematics and Beyond)
Geretschlager, Robert; Posamentier, Alfred S
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View 24 offers£ 30.47
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Mathematical Nuggets from Austria: Selected Problems from the Styrian Mid-Secondary School Mathematics Competitions: 19 (Problem Solving in Mathematics and Beyond)
Robert Geretschläger; Gottfried Perz
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Engaging Young Students In Mathematics Through Competitions - World Perspectives And Practices: Volume II - Mathematics Competitions And How They ... (Problem Solving in Mathematics and Beyond)
Robert Geretschläger
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View 36 offers£ 41.48
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