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Discrete & Computational Geometry > 2012 > 48 > 1 > 19-38
Tsinghua Science & Technology > 2011 > 16 > 6 > 622-631
Discrete & Computational Geometry > 2012 > 48 > 1 > 19-38
Tsinghua Science & Technology > 2011 > 16 > 6 > 622-631