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Lattice Polygons and the Number 12
- Bjorn Poonen and Fernando Rodriguez-Villegas, The American Mathematical Monthly, Vol. 107, No. 3 (Mar., 2000), pp. 238-250
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My Favorite Numbers : 5, 8, and 24
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A short proof of the twelve-point theorem
- Repovscaron D.; Skopenkov M.; Cencelj M., Mathematical Notes, Volume 77, Number 1, January 2005 , pp. 108-111(4)
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The Square Pyramid Puzzle
- W. S. Anglin, The American Mathematical Monthly, Vol. 97, No. 2 (Feb., 1990), pp. 120-124
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This Week's Finds in Mathematical Physics (Week 125)
- John Baez, November 3, 1998
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Picard Groups of Moduli Problems
- David Mumford, Arithmetical Algebraic Geometry, Proceedings of a Conference Held at Purdue University