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Journal of Discrete Algorithms > 2010 > 8 > 2 > 199-213
Information Processing and Management > 2006 > 42 > 6 > 1471-1483
Information Processing and Management > 2005 > 41 > 4 > 973-986
Journal of Discrete Algorithms > 2010 > 8 > 2 > 199-213
Information Processing and Management > 2006 > 42 > 6 > 1471-1483
Information Processing and Management > 2005 > 41 > 4 > 973-986