A Discrete Geometrical Gem
5. References
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Those who can access JSTOR can find some of the papers mentioned above there. For those with access, the American Mathematical Society's MathSciNet can be used to get additional bibliographic information and reviews of some these materials.
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Introduction
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Planar point configurations
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Some ramifications of the Sylvester-Gallai Theorem
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Generalizations and adding color
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References