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Discrete & Computational Geometry > 2003 > 30 > 1 > 65-85
Discrete & Computational Geometry > 2002 > 29 > 1 > 41-59
Discrete & Computational Geometry > 2003 > 30 > 1 > 65-85
Discrete & Computational Geometry > 2002 > 29 > 1 > 41-59