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Algorithmica > 2019 > 81 > 8 > 3075-3098
Theoretical Computer Science > 2012 > 417 > Complete > 12-22
Theoretical Computer Science > 2008 > 401 > 1-3 > 131-143
Information Processing Letters > 2008 > 105 > 3 > 83-87
Algorithmica > 2006 > 45 > 2 > 209-226
Electronic Notes in Discrete Mathematics > 2005 > 22 > Complete > 405-408