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Discrete & Computational Geometry > 2007 > 38 > 2 > 321-354
Discrete & Computational Geometry > 2007 > 37 > 3 > 409-417
Discrete & Computational Geometry > 2007 > 38 > 2 > 321-354
Discrete & Computational Geometry > 2007 > 37 > 3 > 409-417