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Natural SciencesMathematicsCombinatoricsCombinatorial EnumerationGraph TheoryCombinatorial Complexity Of ArrangementsCombinatorial Enumeration Of ArrangementsCrossing MinimizationCrossing NumberIntersection Counting
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Paul Erdős, R. Kent Guy · American Mathematical Monthly · 1973 · 151 citations
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Convex Quadrilaterals and k-Sets
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