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IEEE Transactions on Circuits and Systems I: Regular Papers > 2011 > 58 > 2 > 363 - 373
IEEE Transactions on Computers > 2009 > 58 > 7 > 890 - 901
IEEE Transactions on Circuits and Systems I: Regular Papers > 2009 > 56 > 12 > 2738 - 2748
IEEE Transactions on Circuits and Systems II: Express Briefs > 2008 > 55 > 9 > 897 - 901