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Information Processing Letters > 2016 > 116 > 3 > 245-251
Algorithmica > 2015 > 72 > 4 > 914-939
Information Processing Letters > 2014 > 114 > 8 > 421-425
Theoretical Computer Science > 2014 > 525 > Complete > 30-41
Theoretical Computer Science > 2014 > 522 > Complete > 44-53
Algorithmica > 2011 > 61 > 2 > 227-251
Theoretical Computer Science > 2009 > 410 > 51 > 5374-5381
BioSystems > 2004 > 76 > 1-3 > 209-216